Modern "science" is like an AI prompt. It asserts all sorts of facts from a limited pool of data which continues to degrade from a vicious closed loop.
I just want to say how awesome this episode was put together. The fact that you went through the new mirror and how the size matters for the resolution of things at extreme distance, which then helped to explain the crisis in cosmology... it all flowed very well. Nice! Edit: "My favorite toenail"
Its not so simple with the size, theoretically the bigger mirror the higher possible angular resolution, but in reality it depends on how the telescope is built and for what purpose and its combination of factors like primary mirror size, F-ratio and pixel size of the detector, Vera Rubin observatory will have much lower resolution than Hubble or JWST but it will have much larger FOV and will be much faster.
@@lightwoven5326 This is a crisis because it threatens to undermine everything we understand about cosmology. If we're wrong about this very fundamental data, something we've been building our understanding of the universe on, we've completely fucked up and everything is *wrong.* Thats why its a crisis.
Let’s hope Sunita and Barry can get home safe and soon! Always enjoy your upcoming astronomy info and do my best to follow the rest. Love your presentation enthusiasm!
Fascinating... Schools throughout should invite Dr. Becky for guest lectures/talks. Heck, even secondary/high schools. She can inspire so many young people to pursue science. Thanks again!
Great idea! How about Zoom?? Or this video series for astronomy! We used PBS shows (Nova, Washington Week, etc.) In some our classes when I was in highschool. Progressive school.
The dispute about the crisis in cosmology is a classic case of "don't trust any statistic you haven't forged yourself". Working at the edge of statistical significance is always in issue in my opinion as it becomes very important what the exact process of assigning an uncertainty is in order for that number to support the claim you purport it to do.
I'm so grateful to you and Fraser Cain for taking us all into the 'crisis in cosmology' so we can experience the cracking of a major scientific mystery as it happens. It feels like a real privilege.
5 місяців тому+6
Thank you for putting into words how I feel! It's more intriguing than most of the mystery novels 😄
I truly believe that we are literally on the very brink of solving this problem within a few years. So happy to be a part of this breakthrough thanks to your coverage of this lol crisis. Not really a crisis as it were! Just another scientific conundrum to be systematically resolved. Go go go 😂! We got this! 😊
We already know the backup plan that is easy way to rescue the astronauts so yeah it's still interesting but it's probably not a crises. The cosmology crises is a really long running discrepancy and a lot of us sure find it interesting! My money is on physics/math/data/observations that haven't been made will fix most of dark matter/energy without needing so much dark matter/energy to understand our universe.
@@TheSkystrider It's just relativity. Einstein introduced the cosmological constant because relativistic math worked out that it would look like the universe was expanding if he didn't add a cosmological constant to balance it out. Then what do you know? Observations showed expansion. I think from a newtonian perspective there's less motion than it appears. But relativity is such that our perspective of space and time can change depending on where and when we are.
I want to say a huge _THANK YOU_ for your information on the Perseids meteor shower last month. I planned a trip around the peak, and it was one of the most spectacular nights of viewing I've experienced! Not so much just the meteors (I counted 22 in a span of ~2hrs, and they were amazing) but the auroras that covered the entire sky at some times, and were occasionally shades of red! It was magical, and I wouldn't have been there if I hadn't watched your video, so thank you so much once again! Cheers Becky!
@@fertilizerspikeYou also never need to go on any trips because someone has already taken pictures from there and posted them online. Not to mention what will happen to the number of "professionals" (often just passionate hobbyists) when first timers stop appearing.
In my opinion you are the finest science communicator on UA-cam and some of your peers are excellent as well. Sagan would be delighted so many have taken up his mantle.
I really appreciate that any time the crisis in cosmology (or other topics covered previously) come up, you still provide an explanation. Even having watched the channel for a while now, I still need refreshers to help all the info sink in.
On how much light a full moon can cast in a dark, rural location - I'm in Jamaica, so the moon crosses overhead not that far from the zenith compared to Canada or Europe. The winter full moons are always very high, especially around the solstice, and several times I've hiked out of the bush at night after bat fieldwork without bothering to use my headlamp. It's magical. All black and silvery white, no colours.
I must resist the obvious joke about the moon being high in Jamaica. Seriously though, that's really cool. In rural Europe the full moon also provides a lot of light, although its elevation varies a lot with the seasons.
There are colours, they're just below the ability of the human eye to perceive them. If you take a picture with a sufficiently sensitive camera, the image will show the same colors as in the daytime. The Moon is essentially grey, and so moonlight is just dim sunlight. The Moon is about a million times less bright than the Sun.
The color detectors in our eyes are a lot less sensitive than the brightness detectors, that's why it looks black and white. The mooon isn't bright enough for your eyes to tell color. (look up rod cells and cone cells if you're interested in a better explanation).
@@朕是神 Yep, I know all about that. But it's what I perceive hiking in the bush under a full moon, not what an owl would see (I believe they may have four types of cones like most birds - wish I did).
light speed is pretty fast. I'm thinking we're just proximating red shift wrong. I'm not educated in this field at all. But this stuff is all done on light or something proximate to light. So either the redshift estimate is wrong or our distance proximation is wrong. just watched longer in the video.... might just be too illadviced calibration on distances?!?... just watched longer and we are getting better estimates of distances soon. So either science is wrong or we are pushing our methods beyond theyre cababilities. Damn I like this stuff. Makes me feel dumb, haven't spent years on this stuff. Love it. Please make science inportant again!!!!!!!
YES!!! I've been saying this literally for decades. The interpretation of red-shift is ludicrous. The JWST has shown repeatedly that their Big Bang was most likely a Big Burp and that it just refreshes the local area of the Universe. The Universe is Eternal and Endless. Oh yeah, and the Multi-Verse is likely BS. Think of Raisin pudding. Each Raisin is what we think of an entire universe.
@@weldabar Nah. We just needed an update, but the owner decided to get something from StarBucks instead. Properly maintaining your virtual creation, or coffee? I think we all know what is more important😇
Look ... it's NOT a headache!! Brilliant people are doing their best to tease out the properties of nature here. The whole thing is a wonderful academic adventure not a strain!!! I wish I could be part of it.
Last Monday morning at 630 am A full moon was beginning to set in the west and the sun was risen to nearly exact height in the east . I was driving directly west and the moon was right in front of me and the sun was perfectly behind me shining on my rear view mirror,. Too cool! I'm in eastern Ontario
We are this close to a resolution 👏😁 Such an exciting time to be a space nerd!! 😂❤ Thanx Dr. Becky et al to be 😎💯 lmao that's the best thing about cats... They don't bark! Scientifically brilliant 😂
Starliner - the 737max for space travel! Who's better at spotting problems - NASA or the FAA? Who's more disappointed of their earlier trust in Boeing - NASA or the FAA?
The return without suits was discussed as an option for Crew-8, i.e. the vehicle that is currently docked, if they need to escape the ISS in an emergency before Crew-9 arrives. With Crew-9 they'll have proper suits.
@whocares2277, also don’t forget that Crew-9 can’t dock because Starliner is using its parking space. And they can’t undock Starliner remotely, someone is to go in it and do the undocking maneuver from inside … and then hold their breath as they fly back to the Space station, like Dave in 2001: A Space Odissey.
What is more interesting than the science, is the fascinating lecture by Dr. Becky to explain it to us mere humans. Really amazing vid. The outtakes; Priceless!!!! 🤣
Thanks also for presenting other topics at the start of the video... It's good to know that today's astronomy is not all about Hubble tension and finding universal quantum gravity equations
Yep it's all just up there doing it's thing but I so enjoy Dr Becky explaining some of what is happening and I am so appreciative especially the bits I understand. Thankyou
21:56 You really needed a bulletin board like detective movies behind you with strings connecting all the people and studies because I just sat there nodding sagely pretending like I understood all that.
Whatever your level of scientific expertise and understanding this is the freshest thing I have seen on UA-cam & pace of delivery WOW- that said YOU NEED TO WATCH until the very END - outtakes OMG you are a natural!!
In the summer on Cape Cod, over the Atlantic, I have seen starshine on the water. So indescribably beautiful. It is _thrilling_ to hear about a water reservoir underground on Mars! The possibilities stagger my tiny mind. Dr Becky's enthusiasm is unflagging. And she has such happy cheeks.
I like your videos, lots of information. You could make an entertaining video of just your bloopers. You really enjoy your profession and it shows, like you, and keep the information coming.
Deeper still - how do we know what we think we know is correct and, if so, to what degree is it correct and how soon will we prove it to be incorrect? The Pessimistic Meta-Induction.
Your enthusiasm for the topics and the news is such a breath of fresh air. You can truly tell you love your work, and you love explaining it to us crayon eaters. Keep it up, we await all the new science you can provide!! I have to laugh though, I keep imaging the two groups like the separate news stations in Anchorman squaring off to fight.
My wife bought me a copy of your book for xmas, after I had read it three times I donated it to Barter books on the sly. You now sit amid your peers in your favorite book shop.
I think the main problem is rooted in the basic assumption that "cosmological redshift is caused solely by the Doppler effect". If some astrophysicists can find an alternative mechanism that contributes more significantly to the cosmological redshift (such as a new type of "scattering of light" phenomenon in the outer space, where the amount of scattering is proportional to the distance between the light source and us), this may be able to solve the problem.
Cosmological redshift isn't caused by the Doppler effect. It is caused by the expansion of space stretching the wavelengths as the light travels through it. This has little to do with the peculiar velocity of the galaxy when the light left it which is what causes Doppler shift. Redshift continues to increase the longer the light is in transit because space continues to expand.
@@stargazer7644 I'm aware of that alternative explanation, but it is also based on the assumption that "the universe is expanding". I wonder why most of the astrophysicists do not consider non-expansionist mechanisms that may cause the redshift.
@@williamschlosser Yes, once I watched the recording of a presentation given by Halton Arp on his "quantized redshift" model. His work and some other unorthodox works like "plasma redshift" model should be reconsidered more seriously by the astrophysics community these days, especially when JWST's new observations pose new challenges to the standard cosmology model.
For the trapped astronauts, why can't they just send up two extra space X compatible spacesuits, so they don't have to make the return trip spacesuitless? Just get their sizes and send up two with the ship that they're (maybe) coming home on in Feb.
On Starliner, my understanding of the press conference for the contingency with SpaceX Crew 9 is that if NASA opts for the contingency, only 2 crew would launch in Crew 9, and Starliner crew woukd become the other two crews of Crew 9. On the space suit, Crew 9 would bring up the two additional space suits required, and no additional risk would be present at that time. The problem with the space suits is between the time Starliner undocks uncrewed and the time Crew 9 docks. In that period, Crew 8 would be the contingency in case of an ISS emergency, and certain emergencies require a space suit they don't have.
Used to live by a fjord in Norway where we had no artificial lights if we didn't want to. So I could totally see the supermoon! Especially since the moon lined up with the fjord on its brightest 😮
Oh‚ this is definitely a first world problem. 99.9% of the population does not care that we have the wrong value for the universe expansion rate by 10%. For us‚ it may mean that we are at the precipice of either a huge breakthrough or the collapse of our current models‚ but for everyone else‚ well‚ "this is fine" indeed.
I love your explanations, Becky. You unpack a lot of information for people interested in the topic in a very understandable way. Great job! On the hubble tension, I don't see it as a headache, but as a mathematician, I have to say that the opposite positions of the teams border on religious evangelism. To me, these metodologies to measure distances are not in the falsifiable realm. Ergo, defending postures are more like religious wars. Nonetheless, I marvel about the great creativity that it takes to come up with the methodologies. The math is awesome. And, of course, these attempts to do these measurements are a whole lot better than just pure guessing. The problem I see is that people emotionally entrenched in their ideas lose objectivity and start believing in them as objective truths. And worse, as radical evangelists try to impose them to others.
Boeing's "its safe" perspective on Starliner has never changed and is the perspective of Boeing Management. The question is "how safe". Nothing is ever 100% safe and NASA has number of how safe a spacecraft has to be to fly humans. That is a complicated and often controversial calculation (called a Risk Analysis and is often based on an FMEA). I imagine this is what NASA and Boeing are working through now. Also, after the Challenge Report, NASA added a technical review to the process for determining whether a spacecraft is safe to fly or not. Boeing management seems to still want to follow the "trust us" process even after not fully disclosing/addressing the issues from their previous Starliner flights.
philip k dick was a fxcking genius. Highly underrated imo. he was like the stephen king of scifi except he was not on coke or perpetually long winded in his writings
Dr. Becky Smethurst’s UA-cam channel is a stellar example of how science communication should be done-engaging, passionate, and accessible. It’s a refreshing change from the BBC’s The Sky at Night, which often feels like a bloated waste of license payers’ money. The show, with its overly self-important presenters like Dr. Chris Smith, seems more interested in stroking egos than actually educating viewers. Dr. Becky, on the other hand, delivers real value with every video, making complex astrophysics not only understandable but genuinely exciting. She’s everything The Sky at Night should be but isn't.🌠🚀🔭🪐🌠
Hmmm... reminds me of when I was able to read by the light of the full moon(s) in Monteverde, Costa Rica, back in the day... That is also where I had the privilege of seeing moonlight rainbows (aka moonbows).
space x can't go into space. it's not an actual space ship, just a very high altitude re-usable missile. none of the billionaires have built actual space craft, just glorified missiles for ultra-rich tourists to go up to the edge of the atmosphere and come back down again.
That is exactly what is being worked on. There are so many considerations: from letting Boeing save face (yes, someone still cares about that), to how fast a Dragon can be made available with the required minimal crew, all the way to finding and/or making fitting spacesuits based just on sending down measurements (they're all pretty bespoke after all). The fact that Musk is actually NOT constantly crowing about it (compare his disgraceful behaviour during the Thai kids-in-cave drama), is a fairly clear sign that things are happening behind the scenes. I can't link references on YT, but you can go to Ars Technical and read the options in a number of their articles. Including a tongue-in-cheek one that reports on retirees in Russia(!) shown hand-wringing about why the Motherland doesn't come to the rescue. 😹
@@michaelhoffmann2891 "to how fast a Dragon can be made available with the required minimal crew" That isn't what they're doing. This isn't a special flight. This is the long planned (and slightly delayed) crew-9 rotation flight. They're simply replacing 2 of the crew on that mission with Butch and Suni. Two of the seats will go up with empty space suits, they'll spend 5 months on ISS, then the 4 of them will come back in Feb.
Boeing is teaching us a lesson. We need more space companies, we need to find something other than rocket tech and finally that large corporations can't be trusted to do important work for they have the money to play fast and loose with the rules.
BOEING is not the problem, it is every executive and engineer tied to McDonell-Douglas that should be given their walking papers including their financial ties to BOEING. There is a reason why this company never were trusted by military contractors, but still managed to give them a try anyway….which was like hiring the same company and expecting a completely different result. IM SURPRISED BOEING HASN’T PUT A HIT ON ME YET…perhaps this might REFLECT on their incompetence in multiple ways and their SUM OF ALL FEARS.
@@jasonv2203 Uhm, then Boeing is the problem after all. They are a corporation first and foremost, caring only about their shareholders and profit margins, not quality and safety. It's not just one man but the entire board and management are complicit, hence it's a company issue from there... It may have started with a single man but now it's part of their corporate system, it basically has cancer.
Go woke go broke!!!! Boeing is a disaster, but instead of going after the incompetent woke Boeing CEO's compensation the authoritarians when after Elon's compensation. people need to wake up. Wokism codified as DEI pits people against each other based on race, gender, and sexuality. The employees no longer trust each other and start fighting. The very worst people rise to the top as they scream they are victims.
Great presentation of the Hubble Tension. I hope somehow gravitational waves can be added to this for another perspective. As always we are dependent on the accuracy of the observations and the inherent limitations of each type.
It would be a pretty substantial well, to reach *liquid* (i.e., pump-able) water. Just how deep, we needed those geothermal (areothermal) gradient measurements from Insight to estimate. But with average surface temperatures below -30degC, multiple km depth seems likely.
Just wonderful watching science in action. Two groups working with the same data and coming to different conclusions, and battering the problem with theory, statistics and observations. This is how discoveries are made, when things don't quite line u as expected.
It would be quite helpful if each new hubble constant measurement was placed on that Distance Ladder vs CMB graph, so we can more easily compare if each paper says things are better or worse. Remembering ~67 and ~73 isn't exactly hard, but a visual reminder would really help keep everything in context.
So... the Hubble telescope has observed 42 galaxies, you say? Don't panic... just make sure you know where your towel is, and keep your copy of the Guide handy. 😁
Always love your easy to understand explanations, especially when the subject is not at all simple Enjoy Paramore and their support act, I have heard Taylor is good as well 😉
28:59 which comes back to my original thought - there not measuring the standard candle brightness correctly, idc how identical they think those stars are going to be there’s always going to be ever so slightly differences ( they are currently not accounting for ) the other is the universe is not expanding at the same rate everywhere, - the thing is there looking for one answer and there could be multiple reasons.
I actually take encouragement from this discourse. This is science where you have different points of view, from where real steps forward can be made. When there is complete agreement I have a high level of scepticism.
Ten out of ten doctors agree that nine out of ten doctors are idiots 😜 A lot of things are known fact. Nobody seriously doubts that water is wet, for example. Where there isn't total agreement, science is happening. But things that have been proven to be true are the basis of that. And those, too, are science.
Excellent capsule summary of the current status of the Hubble tension problem; thanks for organizing all of those papers for us. -Tom (fellow astronomer)
I'm reminded of the old joke "The man with one clock, knows what time it is. The man with two clocks is never sure"
Couldn't have said it better😂
Modern "science" is like an AI prompt. It asserts all sorts of facts from a limited pool of data which continues to degrade from a vicious closed loop.
That is jwst…so fitting
Need 3 clocks to start doing statistics. ;)
At least Uranus is visible
I just want to say how awesome this episode was put together. The fact that you went through the new mirror and how the size matters for the resolution of things at extreme distance, which then helped to explain the crisis in cosmology... it all flowed very well. Nice!
Edit: "My favorite toenail"
Its not so simple with the size, theoretically the bigger mirror the higher possible angular resolution, but in reality it depends on how the telescope is built and for what purpose and its combination of factors like primary mirror size, F-ratio and pixel size of the detector, Vera Rubin observatory will have much lower resolution than Hubble or JWST but it will have much larger FOV and will be much faster.
Astrophysics: “We have solved the crisis in cosmology.”
The Crisis in Cosmology: “And I took that personally.”
The Crisis in Cosmology: "I'm a constant. Deal with it!"
Why does everything have to be a crisis?
@@lightwoven5326 This is a crisis because it threatens to undermine everything we understand about cosmology. If we're wrong about this very fundamental data, something we've been building our understanding of the universe on, we've completely fucked up and everything is *wrong.*
Thats why its a crisis.
Cosmology says *Hold my beer*😂😂😂
Didn't know it was a crisis to learn upon errors
Let’s hope Sunita and Barry can get home safe and soon! Always enjoy your upcoming astronomy info and do my best to follow the rest. Love your presentation enthusiasm!
Fascinating... Schools throughout should invite Dr. Becky for guest lectures/talks. Heck, even secondary/high schools. She can inspire so many young people to pursue science. Thanks again!
Absolutely. Dr. Becky, you have a most wonderful gift. I know I would have been absolutely enthralled in high school if you had come to speak.
Great idea! How about Zoom?? Or this video series for astronomy! We used PBS shows (Nova, Washington Week, etc.) In some our classes when I was in highschool. Progressive school.
They could support her through commercial/educational licensing. They could find a budget.
Like they could afford it. idk how much funding you think schools get lol.
@@yubetou52 Canadian (BC), and there is defn funding for this sort of thing here.
The dispute about the crisis in cosmology is a classic case of "don't trust any statistic you haven't forged yourself". Working at the edge of statistical significance is always in issue in my opinion as it becomes very important what the exact process of assigning an uncertainty is in order for that number to support the claim you purport it to do.
Yep.
I'm so grateful to you and Fraser Cain for taking us all into the 'crisis in cosmology' so we can experience the cracking of a major scientific mystery as it happens. It feels like a real privilege.
Thank you for putting into words how I feel! It's more intriguing than most of the mystery novels 😄
I truly believe that we are literally on the very brink of solving this problem within a few years. So happy to be a part of this breakthrough thanks to your coverage of this lol crisis. Not really a crisis as it were! Just another scientific conundrum to be systematically resolved. Go go go 😂! We got this! 😊
I'm happy to hear that the "Crisis in Cosmology" gets another season!😊
Me sitting down with popcorn to listen to more content on the crisis in cosmology
I think the stranded astronauts stuck on ISS is a bigger crisis.
We already know the backup plan that is easy way to rescue the astronauts so yeah it's still interesting but it's probably not a crises. The cosmology crises is a really long running discrepancy and a lot of us sure find it interesting! My money is on physics/math/data/observations that haven't been made will fix most of dark matter/energy without needing so much dark matter/energy to understand our universe.
They probably got the whole function wrong. That is why it gives 2 different measurements at 2 different scales.
I’m so glad Dr. Becky is there to explain all of this.
@@TheSkystrider It's just relativity. Einstein introduced the cosmological constant because relativistic math worked out that it would look like the universe was expanding if he didn't add a cosmological constant to balance it out. Then what do you know? Observations showed expansion.
I think from a newtonian perspective there's less motion than it appears. But relativity is such that our perspective of space and time can change depending on where and when we are.
I want to say a huge _THANK YOU_ for your information on the Perseids meteor shower last month. I planned a trip around the peak, and it was one of the most spectacular nights of viewing I've experienced! Not so much just the meteors (I counted 22 in a span of ~2hrs, and they were amazing) but the auroras that covered the entire sky at some times, and were occasionally shades of red! It was magical, and I wouldn't have been there if I hadn't watched your video, so thank you so much once again! Cheers Becky!
Both at the same time was amazing. My hundredth meteor show, but first aurora and completely unexpected.
That's incredible! I'm so glad I could help, your trip sounds amazing - I'm very jealous haha!
Can't you get better views from data published online by professionals with real equipment and skills
@@fertilizerspikeYou also never need to go on any trips because someone has already taken pictures from there and posted them online.
Not to mention what will happen to the number of "professionals" (often just passionate hobbyists) when first timers stop appearing.
Of course there's water on Mars.
I watched Arnie in Total Recall back in the day.
Matt Damon used it all up
I remember that the planet grew an entire atmosphere during the time Arnie could hold his breath. THat took some considering.
gif zis peepl air!
@@donepearce it was a popular documentary as I remember
Best not to drink it either
Thanks!
I listen to the crisis in cosmology intro section every time to make sure I understand it 😂
In my opinion you are the finest science communicator on UA-cam and some of your peers are excellent as well. Sagan would be delighted so many have taken up his mantle.
Thank you! That's very high praise indeed, because there are a huge number of excellent science communicators on UA-cam
No offense dude but I can guarantee she eve disagrees with you.
Go listen to Sean Carrol and you will see a large difference
@@Masoch1st what part of "my opinion" do you not understand?
Also some folks have a hard time following people like Carrol as they can tend to speak above what the average person can comprehend.
Carl Sagan gave me my PhD in astronomy (in 1972) . You give me updates at my level. Thanks
Becky you make a difficult subject easier to understand for the great uneducated gaggle such as I. Thanks for taking time to explain it!
I really appreciate that any time the crisis in cosmology (or other topics covered previously) come up, you still provide an explanation. Even having watched the channel for a while now, I still need refreshers to help all the info sink in.
On how much light a full moon can cast in a dark, rural location - I'm in Jamaica, so the moon crosses overhead not that far from the zenith compared to Canada or Europe. The winter full moons are always very high, especially around the solstice, and several times I've hiked out of the bush at night after bat fieldwork without bothering to use my headlamp. It's magical. All black and silvery white, no colours.
I must resist the obvious joke about the moon being high in Jamaica.
Seriously though, that's really cool. In rural Europe the full moon also provides a lot of light, although its elevation varies a lot with the seasons.
There are colours, they're just below the ability of the human eye to perceive them. If you take a picture with a sufficiently sensitive camera, the image will show the same colors as in the daytime. The Moon is essentially grey, and so moonlight is just dim sunlight. The Moon is about a million times less bright than the Sun.
@@antonystark9240 Yep, however, being human, those are the only eyes I have.
The color detectors in our eyes are a lot less sensitive than the brightness detectors, that's why it looks black and white. The mooon isn't bright enough for your eyes to tell color. (look up rod cells and cone cells if you're interested in a better explanation).
@@朕是神 Yep, I know all about that. But it's what I perceive hiking in the bush under a full moon, not what an owl would see (I believe they may have four types of cones like most birds - wish I did).
Ohhh I really like the sunlight on you! This makes me think way more UA-camrs should record during the day with sunlight!
It wasn't sunlight it was just warm yellow lighting to mimic sunlight - glad that it worked! :)
Problem with natural sunlight is that it moves around while you are recording.
Then there's always the possibility that both the distances AND the current model of the universe are wrong 😂.
light speed is pretty fast. I'm thinking we're just proximating red shift wrong. I'm not educated in this field at all. But this stuff is all done on light or something proximate to light. So either the redshift estimate is wrong or our distance proximation is wrong. just watched longer in the video.... might just be too illadviced calibration on distances?!?... just watched longer and we are getting better estimates of distances soon. So either science is wrong or we are pushing our methods beyond theyre cababilities. Damn I like this stuff. Makes me feel dumb, haven't spent years on this stuff. Love it. Please make science inportant again!!!!!!!
Or maybe somebody spilled a coffee onto the computer that runs our virtual reality, ha ha.
It's also not my field, but my guess is that our *Standard Candles* are nowhere near as _standardized_ as we would like to think they are. 🤷♂️
YES!!! I've been saying this literally for decades. The interpretation of red-shift is ludicrous. The JWST has shown repeatedly that their Big Bang was most likely a Big Burp and that it just refreshes the local area of the Universe. The Universe is Eternal and Endless. Oh yeah, and the Multi-Verse is likely BS. Think of Raisin pudding. Each Raisin is what we think of an entire universe.
@@weldabar Nah. We just needed an update, but the owner decided to get something from StarBucks instead. Properly maintaining your virtual creation, or coffee? I think we all know what is more important😇
Look ... it's NOT a headache!! Brilliant people are doing their best to tease out the properties of nature here. The whole thing is a wonderful academic adventure not a strain!!! I wish I could be part of it.
Last Monday morning at 630 am A full moon was beginning to set in the west and the sun was risen to nearly exact height in the east . I was driving directly west and the moon was right in front of me and the sun was perfectly behind me shining on my rear view mirror,. Too cool! I'm in eastern Ontario
And that's how you know you don't live on the equator!
I've missed a bunch of these. I'd forgotten how much I love your cheerful attitude. Thank you.
Now you are just toying with my emotions..
Crisis..
Solution..
Crisis back..
Another solution..
Crisis in cosmology: "Knock knock, I am baaAAck."
That's the thing, though. Brings into question what in the universe is actually "solved?"
It’s only a crisis because they keep trying to explain how impossible things happen without a creator. 😕
@@ktrimbach5771 what impossible things??
We are this close to a resolution 👏😁 Such an exciting time to be a space nerd!! 😂❤ Thanx Dr. Becky et al to be 😎💯 lmao that's the best thing about cats... They don't bark! Scientifically brilliant 😂
even in space, Boeing knows how to disappoint
They dont care if the kill people in the Skys so why would they care about astronauts.
Starliner - the 737max for space travel! Who's better at spotting problems - NASA or the FAA? Who's more disappointed of their earlier trust in Boeing - NASA or the FAA?
Little known fact: The S. S. Minnow was built by Boeing Shipyards.
Boeing is having problems yes but it still helped build the SLS which went round the moon on its first attempt.
first mistake was hiring software developers from india
Excellent video Becky! Your ability to explain astronomical events and concepts improves with each video. Thank you for taking the time to do it.
About Boeing space suits if they return on SpaceX, it was mentioned that SpaceX does have spares suit that would fit.
Yeah, I thought I remembered hearing they would bring two extra suits up on the crew dragon if they were going to use that to return.
@c.simmons2147 I was going to ask why they can't just bring two extra suits in September. Guess this escaped dr.Becky.
I guess they have their measurements, but don't you loose muscle mass in space? Suits you sir.............. fits where it touches.
The return without suits was discussed as an option for Crew-8, i.e. the vehicle that is currently docked, if they need to escape the ISS in an emergency before Crew-9 arrives. With Crew-9 they'll have proper suits.
@whocares2277, also don’t forget that Crew-9 can’t dock because Starliner is using its parking space.
And they can’t undock Starliner remotely, someone is to go in it and do the undocking maneuver from inside … and then hold their breath as they fly back to the Space station, like Dave in 2001: A Space Odissey.
Becky, yours are the only I might watch twice. :)
I find myself watching this one a third time.
Good stuff.
Thank you for the update in understandable language.
What is more interesting than the science, is the fascinating lecture by Dr. Becky to explain it to us mere humans. Really amazing vid. The outtakes; Priceless!!!! 🤣
Love the silent shout out to Cleo Abram! (12:00)
Came here to say this - loved it! 😀
Spooky 😂
Oops. I thought it was Keira Knightley. 😊
Cleo jumpscare
Becky & Cleo colab would be HUGE...
I literally came here for the Channel name. A play on Sky News 😆 I stayed and subbed for the level of detail in the talk throughout.
Thanks also for presenting other topics at the start of the video... It's good to know that today's astronomy is not all about Hubble tension and finding universal quantum gravity equations
Crises are usually bad, but in science they usually beckon very interesting advances. I'm very curious to hear how this evolves.
So much excitement about so little, my favorite kind of information conduit.
The most cogent description of this "crisis". Much gratitude. Subscribed!
Boeing says it is safe is the definition of a flight halt warning.
Yeah, watch out, the door might pop out😱
Yep it's all just up there doing it's thing but I so enjoy Dr Becky explaining some of what is happening and I am so appreciative especially the bits I understand. Thankyou
21:56 You really needed a bulletin board like detective movies behind you with strings connecting all the people and studies because I just sat there nodding sagely pretending like I understood all that.
Whatever your level of scientific expertise and understanding this is the freshest thing I have seen on UA-cam & pace of delivery WOW- that said YOU NEED TO WATCH until the very END - outtakes OMG you are a natural!!
This whole Hubble tension saga befits a bobbybroccoli video documentary!
In the summer on Cape Cod, over the Atlantic, I have seen starshine on the water. So indescribably beautiful.
It is _thrilling_ to hear about a water reservoir underground on Mars! The possibilities stagger my tiny mind.
Dr Becky's enthusiasm is unflagging. And she has such happy cheeks.
Thank you for showing pics of researchers!
Sometimes easy to forget they're all humans
I like your videos, lots of information. You could make an entertaining video of just your bloopers. You really enjoy your profession and it shows, like you, and keep the information coming.
This just illustrates the old adage, the more we know, the more we realize we don't know.
Deeper still - how do we know what we think we know is correct and, if so, to what degree is it correct and how soon will we prove it to be incorrect? The Pessimistic Meta-Induction.
Your enthusiasm for the topics and the news is such a breath of fresh air. You can truly tell you love your work, and you love explaining it to us crayon eaters. Keep it up, we await all the new science you can provide!! I have to laugh though, I keep imaging the two groups like the separate news stations in Anchorman squaring off to fight.
My favorite color is Red 😍😂😂😂😂.
You could make a movie about solving the Hubble tension. More drama than a season of Bridgerton.
Great jock full of information, Dr. Becky! (thank goodness for CC)
My wife bought me a copy of your book for xmas, after I had read it three times I donated it to Barter books on the sly.
You now sit amid your peers in your favorite book shop.
Thank you 🤩
@@DrBecky No problem, btw it took three reads to get it all in, loved it.
Love your energy and method of presenting. Nice and light. Very enjoyable.
I think the main problem is rooted in the basic assumption that "cosmological redshift is caused solely by the Doppler effect". If some astrophysicists can find an alternative mechanism that contributes more significantly to the cosmological redshift (such as a new type of "scattering of light" phenomenon in the outer space, where the amount of scattering is proportional to the distance between the light source and us), this may be able to solve the problem.
Cosmological redshift isn't caused by the Doppler effect. It is caused by the expansion of space stretching the wavelengths as the light travels through it. This has little to do with the peculiar velocity of the galaxy when the light left it which is what causes Doppler shift. Redshift continues to increase the longer the light is in transit because space continues to expand.
Halton Arp has a sensible explanation for redshift, based on photos you can see in his book "Seeing Red".
@@stargazer7644 I'm aware of that alternative explanation, but it is also based on the assumption that "the universe is expanding". I wonder why most of the astrophysicists do not consider non-expansionist mechanisms that may cause the redshift.
@@williamschlosser There is very little that is "sensible" in that book.
@@williamschlosser Yes, once I watched the recording of a presentation given by Halton Arp on his "quantized redshift" model. His work and some other unorthodox works like "plasma redshift" model should be reconsidered more seriously by the astrophysics community these days, especially when JWST's new observations pose new challenges to the standard cosmology model.
When you told your Mars Water nerd joke, in my head, I heard Gilbert and Lewis (Revenge Of The Nerds) laughing. Thanks for that.
two passengers set sail that day,
for an eight day tour,
an eight day tour.
gilligan's space station ...
I don’t see Skipper anywhere.
Looks like Mary Ann and the Professor to me. 😂
Let’s hope my favorite basketball team ever ever, the Harlem Globetrotters, don’t show up on the ISS before Sunita and Barry. Make it home safely.
Or The International Island, where's Ginger and Mary Ann? The Professor would have had things fixed before they docked. Boeing, not so much.
Excellent overview of a confusing complex observational debate. Very clear explanation of the distance ladder. I'm willing to wait for more data.
For the trapped astronauts, why can't they just send up two extra space X compatible spacesuits, so they don't have to make the return trip spacesuitless? Just get their sizes and send up two with the ship that they're (maybe) coming home on in Feb.
That is the plan, they mentioned it when they announced the plan to bring the astronauts home, but it was after this video was published.
I enjoy watching your content. Good to hear things explained by someone that has a good understanding.
On Starliner, my understanding of the press conference for the contingency with SpaceX Crew 9 is that if NASA opts for the contingency, only 2 crew would launch in Crew 9, and Starliner crew woukd become the other two crews of Crew 9. On the space suit, Crew 9 would bring up the two additional space suits required, and no additional risk would be present at that time. The problem with the space suits is between the time Starliner undocks uncrewed and the time Crew 9 docks. In that period, Crew 8 would be the contingency in case of an ISS emergency, and certain emergencies require a space suit they don't have.
Used to live by a fjord in Norway where we had no artificial lights if we didn't want to. So I could totally see the supermoon! Especially since the moon lined up with the fjord on its brightest 😮
The "crisis in cosmology" reminds me of the meme of someone sitting in a burning building saying, "This is fine"
Oh‚ this is definitely a first world problem. 99.9% of the population does not care that we have the wrong value for the universe expansion rate by 10%. For us‚ it may mean that we are at the precipice of either a huge breakthrough or the collapse of our current models‚ but for everyone else‚ well‚ "this is fine" indeed.
Just stumbled across the channel, I am loving the content and geekiness. Dr with light humour and captivating blue eyes ❤
I long for the Good Ol' Days, when everyone agreed that the Hubble constant was 75 +- 25 km/s/Mpc.
i disagree ...
@@thehellyousay It's rather presumptuous of you to disagree what I say I long for.
I long for the days where people would understand simple jokes
@@droog8400 I long for people to shut up
@@brodude7194 unless the hypocrisy can be overcome, that's probably not going to happen
I love your explanations, Becky. You unpack a lot of information for people interested in the topic in a very understandable way. Great job!
On the hubble tension, I don't see it as a headache, but as a mathematician, I have to say that the opposite positions of the teams border on religious evangelism. To me, these metodologies to measure distances are not in the falsifiable realm. Ergo, defending postures are more like religious wars.
Nonetheless, I marvel about the great creativity that it takes to come up with the methodologies. The math is awesome. And, of course, these attempts to do these measurements are a whole lot better than just pure guessing.
The problem I see is that people emotionally entrenched in their ideas lose objectivity and start believing in them as objective truths. And worse, as radical evangelists try to impose them to others.
Boeing's "its safe" perspective on Starliner has never changed and is the perspective of Boeing Management. The question is "how safe". Nothing is ever 100% safe and NASA has number of how safe a spacecraft has to be to fly humans. That is a complicated and often controversial calculation (called a Risk Analysis and is often based on an FMEA). I imagine this is what NASA and Boeing are working through now. Also, after the Challenge Report, NASA added a technical review to the process for determining whether a spacecraft is safe to fly or not. Boeing management seems to still want to follow the "trust us" process even after not fully disclosing/addressing the issues from their previous Starliner flights.
Thanks, Becky. Lucid presentation of the Hubble Crisis
Great round up! Thanks
JWST is doing absolutely wonderful confirmations of the Electric Universe cosmology.
water on mars is like total recall. which is cool.
philip k dick was a fxcking genius. Highly underrated imo. he was like the stephen king of scifi except he was not on coke or perpetually long winded in his writings
Dr. Becky Smethurst’s UA-cam channel is a stellar example of how science communication should be done-engaging, passionate, and accessible. It’s a refreshing change from the BBC’s The Sky at Night, which often feels like a bloated waste of license payers’ money. The show, with its overly self-important presenters like Dr. Chris Smith, seems more interested in stroking egos than actually educating viewers. Dr. Becky, on the other hand, delivers real value with every video, making complex astrophysics not only understandable but genuinely exciting. She’s everything The Sky at Night should be but isn't.🌠🚀🔭🪐🌠
Hah, you said stellar.
@@michaelgjoyce Good eh?
@@jederickstinger743🌟
Hmmm... reminds me of when I was able to read by the light of the full moon(s) in Monteverde, Costa Rica, back in the day... That is also where I had the privilege of seeing moonlight rainbows (aka moonbows).
12:00 Huge if true lmao, nice reference
This assessment applies to 80% of science headlines given how pressured news outlets are to make click bait titles.
Love you talking about the Hubble Tension. It is so fascinating
Can't the Space X crew take some extra suits with them!? 😅
space x can't go into space. it's not an actual space ship, just a very high altitude re-usable missile. none of the billionaires have built actual space craft, just glorified missiles for ultra-rich tourists to go up to the edge of the atmosphere and come back down again.
That is exactly what is being worked on. There are so many considerations: from letting Boeing save face (yes, someone still cares about that), to how fast a Dragon can be made available with the required minimal crew, all the way to finding and/or making fitting spacesuits based just on sending down measurements (they're all pretty bespoke after all). The fact that Musk is actually NOT constantly crowing about it (compare his disgraceful behaviour during the Thai kids-in-cave drama), is a fairly clear sign that things are happening behind the scenes. I can't link references on YT, but you can go to Ars Technical and read the options in a number of their articles. Including a tongue-in-cheek one that reports on retirees in Russia(!) shown hand-wringing about why the Motherland doesn't come to the rescue. 😹
@@michaelhoffmann2891 "to how fast a Dragon can be made available with the required minimal crew" That isn't what they're doing. This isn't a special flight. This is the long planned (and slightly delayed) crew-9 rotation flight. They're simply replacing 2 of the crew on that mission with Butch and Suni. Two of the seats will go up with empty space suits, they'll spend 5 months on ISS, then the 4 of them will come back in Feb.
@@stargazer7644 yes, I know that now. That wasn't clear to me when I wrote this. I read the Ars Technica coverage.
Mars' and Jupiter's dance in the recent weeks was lovely to watch, together with a sub-dance by Jupiter's moons 😸
I predict that the Hubble tension is caused by both possible reasons.
the universe is a rubber band ...
My favourite time of the month ❤
26:33 42 galaxies? Douglas Adams approves
Love it! Science in action!
Boeing is teaching us a lesson. We need more space companies, we need to find something other than rocket tech and finally that large corporations can't be trusted to do important work for they have the money to play fast and loose with the rules.
Boeing is teaching us that Boeing shouldn’t be building flying machines… (hope Boeing doesn’t assassinate me for saying…)
@@D678-d6b Don't worry, they only assassinate their own people... 😆
BOEING is not the problem, it is every executive and engineer tied to McDonell-Douglas that should be given their walking papers including their financial ties to BOEING. There is a reason why this company never were trusted by military contractors, but still managed to give them a try anyway….which was like hiring the same company and expecting a completely different result. IM SURPRISED BOEING HASN’T PUT A HIT ON ME YET…perhaps this might REFLECT on their incompetence in multiple ways and their SUM OF ALL FEARS.
@@jasonv2203 Uhm, then Boeing is the problem after all. They are a corporation first and foremost, caring only about their shareholders and profit margins, not quality and safety. It's not just one man but the entire board and management are complicit, hence it's a company issue from there... It may have started with a single man but now it's part of their corporate system, it basically has cancer.
Go woke go broke!!!! Boeing is a disaster, but instead of going after the incompetent woke Boeing CEO's compensation the authoritarians when after Elon's compensation. people need to wake up. Wokism codified as DEI pits people against each other based on race, gender, and sexuality. The employees no longer trust each other and start fighting. The very worst people rise to the top as they scream they are victims.
Great presentation of the Hubble Tension. I hope somehow gravitational waves can be added to this for another perspective. As always we are dependent on the accuracy of the observations and the inherent limitations of each type.
The idea that digging a well on mars in the future might be a thing makes me smile.
It would be a pretty substantial well, to reach *liquid* (i.e., pump-able) water. Just how deep, we needed those geothermal (areothermal) gradient measurements from Insight to estimate. But with average surface temperatures below -30degC, multiple km depth seems likely.
Lol we are definitely calling Martians "Rednecks"
These kinds of problems are the best! Once we figure them out, it's going to be a big big step towards understanding the universe more 💪
Also given boeings history with doors and bolts.
Boing!
Just wonderful watching science in action. Two groups working with the same data and coming to different conclusions, and battering the problem with theory, statistics and observations. This is how discoveries are made, when things don't quite line u as expected.
Sat'n! My favorite planet.
Read this post before I watched the video, and every time I heard it I heard Sat'n. lol
Cant unhear it now...thx
At least get the pronunciation right. The glottal stop replaces the 't', it is not in addition to it.
Not a bad fabric either.
The planet Twill
It would be quite helpful if each new hubble constant measurement was placed on that Distance Ladder vs CMB graph, so we can more easily compare if each paper says things are better or worse. Remembering ~67 and ~73 isn't exactly hard, but a visual reminder would really help keep everything in context.
So... the Hubble telescope has observed 42 galaxies, you say? Don't panic... just make sure you know where your towel is, and keep your copy of the Guide handy. 😁
Yep, we are looking for the answer, but we probably don't know what the proper question is in the first place!
@@bryanpropp2179That makes sense.
As much as life, the universe and everything.
Always love your easy to understand explanations, especially when the subject is not at all simple
Enjoy Paramore and their support act, I have heard Taylor is good as well 😉
Can we settle this debate once and for all by bringing back MTVs Celebrity Cage Match - Reiss vs. Freedman 😂
Miss those episodes 😂
As Harry Hill would say, "There's only one way to settle this... FIGHT!!!"
28:59 which comes back to my original thought - there not measuring the standard candle brightness correctly, idc how identical they think those stars are going to be there’s always going to be ever so slightly differences ( they are currently not accounting for ) the other is the universe is not expanding at the same rate everywhere, - the thing is there looking for one answer and there could be multiple reasons.
You might not care, but physicists do. They have good reason to believe they well understand the physics that cause the star's brightness.
If it’s a Boeing, I ain’t going. ‘Nuff said.
Boing!!!
you’re so cool
Wow! This is the best and most convincing Brilliant promotion. Will resubscribe again 😂
JWST HASN'T solved the Crisis in Cosmology... totally unexpected. Thank god I wasn't holding my breath.
God's not real 🤣⛳
It's just that one team had published a paper claiming it had.
I actually take encouragement from this discourse. This is science where you have different points of view, from where real steps forward can be made.
When there is complete agreement I have a high level of scepticism.
Ten out of ten doctors agree that nine out of ten doctors are idiots 😜
A lot of things are known fact. Nobody seriously doubts that water is wet, for example.
Where there isn't total agreement, science is happening. But things that have been proven to be true are the basis of that. And those, too, are science.
Like the "standard model" of the universe, for example?...
@@williamschlosser Did you mean the standard model of quantum physics?
@@davidwuhrer6704 No, the standard model of cosmology. Big Bang, DM, DE, inflation. 96% made-up "dark" stuff, only 4% real stuff.
Excellent capsule summary of the current status of the Hubble tension problem; thanks for organizing all of those papers for us. -Tom (fellow astronomer)
Yikes! That was a boat load of info. ❤
thank you again. I enjoy your view of the Universe and it helps us find our view of the Universe as well. 💙🌻💙
Hey Dr. Becky, your'e looking stellar as usual. Thanks for the info & views. Yep, the universe is a big place :)
It’s not a crisis! It’s new information and it’s wonderful ❤
Very good! I am waiting for some new physics to explain things better. : - )
Try plasma cosmology, the only self-contained physical theory of the universe. All other theories are ad hoc curve-fitting.