I am equally frustrated with rubbish youtube channels that have huge followings but are nothing but word salad and fanciful graphics. I have to conclude that either people are scientifically illiterate or they have a chatgpt add on that can view this rubbish. Keep up the good work, you are one of the best communicators out there.
And if you were to create a list of high-quality, high-content, high S/N ratio of existing channels, what would that list look like? For example, my list of 'favorites' would include Scott Manley's channel. Regarding the space channels UA-cam promotes. The only way to do this currently requires 'old school' lists. After all, can you recommend better space channelss than what UA-cam? The go for it
A problem with trash pseudo science channels is that people who are informed enough know to avoid them, but newcomers to the field may be susceptible to their pretty pictures and word salad misinformation, which expands the educational divide between informed people and the rest.
Question: How are you doing Fraser? The world is in such a messed up state right now with everything going on, I'd just like to take a minute to say thank you for everything you provide to the community, truly great, well researched content, by all the team, all the time. You're such a great space and science communicator and always interesting to listen to, unlike some of these bot channels. Thank you for helping us fulfil our curiosity along with you on your journey. Hope all is well. 🙂
We all need to report these when we see them as misinformation. Hopefully youtube will create a report category for "AI generated" soon. I don't see them that often myself as my algorithm has learned better.
Interesting point about Arecibo: The U.S.A.F. footed a large chunk of the construction costs because they wanted to bounce R.A.D.A.R. signals off of the Moon to detect aircraft, missiles, etc. on Earth. Their experiment didn't pan out as hoped, but astronomers got to keep the cool toys. The Cold War competition did have some useful spin-offs.
Mandalore. Hey Fraser, don't let it bring you down or discourage. Creating low-quality content and being someone who can't tell garbage from science and facts has always been easier and thus it is more common. But you're on the light side of the force! You're creating high-quality content and your audience even simply by being your audience values it. They need your content. We need it. We need you around! And we need you to continue being one of the high-quality content creators here on UA-cam. If UA-cam doesn't care about the quality of the content published, it's only up to us to make this quality high! Meanwhile, I'm finally brave enough for a question. What does speed mean in space? Can an object move "through space" at a given speed? Does it have some kind of an anchor point or points which we consider stationary in space and relative to which we measure speed, e.g. does interstellar medium mostly stay in place? I guess when we discuss speed at which cosmic rays hit the Earth we mean the speed relative to Earth, when we talk Voyager we likely mean its speed relative to the Sun and runaway stars travel fast relative to the galaxies they escape from. But I still feel like I'm missing something!
Thanks a lot. Regarding your question, you can only measure speed relative to some other observer. So, you're not moving fast from my perspective, but going 30 km/s around the asun. There is no truly objective observer.
I really love the whole style of this show, it’s not overhyping. Instead you get amazing new information about the universe. Thank you so much for your work!
Mandalore: honest and true. Thankfully, it's really not a challenge to discern which video is scientifically accountable and which is veritable detritus. And before clicking on them too! Though, I am perhaps a bit too circumspect here regards. It took around a year of 'Answers with Joe' being recommended before I thought it of the mettle to click upon.
Hoth The Yarkovsky effect has a close cousin, the YORP effect. Also caused by differential heating but YORP effect pertains to the rotation of the object. Periodically objects can be spun up by YORP to make them spin apart. Combine Yarkovsky and YORP and the result is impossible to predict much into the future.
Don't worry Fraser those AI space videos are also getting bot views to boost them. This will get sorted out eventually since this bot engagement is also an issue for every site under the sun. A solution for one that is effective will lead to a solution for all.
In your book club section it basically sounds like you're describing the plot of the later seasons of Stargate SG1 with the ancients and the Ori (don't know what came first, SG1 or these books) but feel I need to watch some of these again 😊
Are the gas giant planets really only gas? Or do they have small planets deep within which we do not know or understand the possibilities of stellar physics completely?
It is worth rebuilding the Arecibo telescope even if it was just to promote education. I know a bunch of people that went into science and engineering because they were inspired by Arecibo. I remember seeing it for the first time and imagining if this is possible what other wild things might be possible.
those "science" videos are perfect for going to sleep (some of them even say that theyre for insomniacs) . the dreams i have while listening to those are wonderful but, when i need real science, i go to Sabine and you . so, dont worry, dude
Good afternoon Fraser, thank You! Your news are consistent over time and I see Your contribution to the media as a luxury dinner menu compared to the "word salads" You have mentioned. Fast food, fast news, both have something in common...
Hey Fraser, I have a question: could one of the galaxies in the sky be a mirror image of our own galaxy, effectively our own light being sent out into the universe, warping around some dark matter and coming straight back to us. As if we are looking back in time?
I would say no. If you look for the next mass concentration of whatever it could do what you describe, how many lightyears is it away from us? This distance including the expansion of space and multiplied by two would give you an more or less different "mirrored" image of our galaxy. Another point is that we really don't know how the milkyway looks like 😁
It's also a promising direction for future interstellar propulsion- systems . If we could generate a field that accelerated the atomic particles a ship was passing to relativistic speeds , the resulting recoil could slowly accelerate said ship to the ten-percent of lightspeed needed for realistic deep-space travel . The above would really only be practical in the case of exoplanet colonization , this by huge fleets of cryoships , these coasting in a frozen state for most of the trip . It now appears that many red-dwarf planets will have large endowments of photodissociated oxygen in their atmospheres , particularly in the case of those lacking plate-tectonics and/or a vigorous water-cycle . The space-condos are waiting , long live the Horta !! 🤓
Dude, I have to thank you for mentioning how simulated regolith is available online. Got a set of 2 Mars dirts for my space obsessed 8 year old nephew's birthday. The shock on his face was way worth $20!
You mentioned field stars dont go through the cycles that stars in galaxies do. I was thinking that there could possibly be field stars that had already been through several cycles of formation and therefore have planet and possibly got ejected during a galaxy merger or a three body ejection of some kind. Just a thought.
Regarding the question (Naboo) about Field Stars, is it not possible that such a star/solar system could have, in fact, gone through all the necessary changes and could have been a member of a galaxy but has 'escaped' said galaxy after having gone through all the necessary changes that would be needed for planetary bodies?
5:36 I think the question asked something different. He wondered if we could see the reflection -of the moon- in the planets ocean. Not a glint from the moon's ocean.
I understood it the same way 😅 I was rather surprised when I heard enthusiastic confirmation 😅 I think we could see at least the shadow of the moon? I mean to see the reflection, the ocean's surface would have to be smooth? With the waves and, say, clouds above and all... I can't imagine how it would be possible, but hey, maybe Fraser will answer one day 😅
Hi Fraser, very interesting video as always, I would like to vote “Hoth” as most interesting topic today (despite the fact they actually all were:) Thank you very much.
Tatooine Are there CR detectors on the inside of the spacecraft as well as outside, to see how much protection is afforded by the "shielding" of the ship?
I once did some basic research on the Sol vs Earth's nuclear arsenal for a comment on Reddit once, and I came up with the following: Earth's entire nuclear arsenal of a bit over 13,000 warheads is roughly equivalent to 3 gigatons (3 * 10^9 tons) of TNT. Sol (as an example) radiates the equivalent of just under 8 zettatons of TNT (8 * 10^21 tons of TNT. That gives a bit over 2 * 10^12 (1,000,000,000,000) times Earth's entire nuclear arsenal) per day. Does that sound right to you?
Some good reads: Revelation Space by Alastair Reynolds, and its sequels/prequels. House of Suns, also by Reynolds but not related to the other novels. The Manifold Triology by Stephen Baxter. The Mote in God's Eye by Niven/Pournelle.
By the way, i watch your videos because they are no nonsense. If i only hear some meditative blabla or some weird opinions i leave at once. :) Cheers and thanks for your work!
Fraser - if a “planet” is a (spherical) celestial body that has cleared its orbital path how do define similar bodies that occupy the space between solar systems (bodies that some would understand as “rogue” planets). Can they, in fact, be “planets”. What do we call “planets” that have been ejected from their solar systems and thus do not orbit a star?
Question: I wonder if it will be ever posible to see our distance past by looking at light that had been emitted from the earth millions of years ago which has then been reflected or bent back (via gravity or similar process) towards the earth again, almost like watching a video recording?
Tatooine: This is also kind of your number 1 argument against the claim that Wi-Fi or any mobile phone technology is damaging you, since cosmic rays, especially when you are travelling by plane, are much more potent and of the ionizing kind in contrast to radio-based technologies.
Would it be possible to pinpoint Oumuamua and point the JWST at it in order to observe if is expelling Hydrogen and therefore clarify if is natural or artificial?
How much content does Fraser and Co generate every week? Is there a number on it? Im always surprised when nearly everyday they is a fresh video in my feed
One way there could be a (complete) star system (including exoplanets) out in “the field” (intergalactic void)…. Is if it was somehow ejected from the central core area of a galaxy and its planets “went along for the ride.”
You'll never read another scifi universe as good as the culture. It sits on a pedestal all its own. The Hyperion Cantos series really sparks the imagination as a lesser. The Expanse is really good. Adrian Chaikovsky's The Final Architecture and The Children of Time.
From printed atlases, I remember a valley in Colorado along the continental divide that doesn't drain east or west, in the middle of 3 mountains. Would be a great place for a radio telescope. Winter time snow would be a problem. Maybe have a rail like a roller coaster around the edge with an arm that curves up and over the dish almost to the center. Could have several for several observation locations in different directions. Would limit how close each receiver could be and total number of receivers.
At 05:20...image of moon in front of planet done by computer graphics.... way back in the eighties with a pencil and cartridge paper I drew the contents of a friend's bath tub deposited by that friend's cat...yes the poop.... I later added the iris and pupil of the human eye behind it with some other stuff going on around the eye and somehow made it stand out like a 3D effect...I showed it off to a lot of peeps over a couple of years, and won an award in a small village show of art where most other artworks in small village shows are either portrait or landscape of people, houses or flowers...I guess I got awarded for some weirdy new stuff.... some years later I came across a pink floyd album called 'Pulse'.... Anyone seen or heard of this album?...I'd like to know.
i know you've answered this before but i've been asking it of alot of ai and chatbots and people to see what their EXACT answer is what is the meaning of life, the universe and everything? also what is the question???
I don’t need eye candy. Your voice and that music are perfect for me. I learn more by just listening. I think I watched some of that video you mentioned. Then, I hit the do not recommend this channel to me.
I think a red dwarf would have a hard time forming out of coalescing hydrogen, so the assumption is that Pop-III stars were all large, but I don't believe this is known with high certainty. That said, I'm not an expert.
Voting for Yavin People who think launching things into the sun is a viable solution needs to play Kerbal Space Program. Furthermore, if there's even a 1 % risk of such a rocket failing, we really don't want it to carry a small part of Earth's nuclear arsenal.
❓@Fraser Cane Can you please share a little about the observatory that, I believe, you are in the process of constructing? Reflector/refractor/S-C/...? Size? Dome?
Can scientists entangle particles intentionally? Do they have to be the same type of particle? Do they need to be adjacent? Can more than 2 particles be entangled to each other at the same time?
are cosmic rays at the same density everywhere ispace would it be worth it to minaturize cosmic ray obsevatories so you could put one on the space ship to mars to find the safest path to send more missions to mars.
New Question: Why doesn’t our Sun and Moon have a name? Jupiter & Saturn and their moons and all have names, as do Alpha Centauri, Trappist etc. I heard the moon had a theoretical name 'Thea', the name of the theoretical planet that hit the earth during the formation. Should we give them names?
@Angelspawn Hi, yes thank you for your reply. I agree Sol and Luna are unique names, both ancient roman gods but are not commonly used. They are considered old names in the west. No one says 'Lets go sit in the sol' or ' The Sol has come out' or 'Luna is bright tonight'. 'Helios' is also another old name for the Sun rarely used.
All the nukes on earth wouldn't make a dent on the sun! (Bespin) Worse than that, it would be a waste of valuable tools, those nukes can be used to explore the solar system at great speed! When we disarm, we should beat our swords into ploughshares by turning those nukes into propulsion units for crewed spacecraft... Nukes are awesome, it's just a shame we use them like children.... :)
BTW, has no one approached China to build all the parts to completely replace Arecibo?? Fast was constructed/assembled by premade parts made in factories in other parts of China and shipped to Jinke for final assembly. It would greatly reduce the cost of replacing Arecibo if ... could be the Same factory, made the parts, shipped to PR, and assembled... calibrated, etc. Instead of the constant dribble of anti- anything china from the states, it could be like the ISS is for CSA/ESA/JAXA/NASA and RosCosmos.
I can't believe HBO bought PBS, There use to be history on the history channel.. Things devolve as much as evolve. I gave up cable+TV because the quality stuff came to UA-cam, its sad to see that start to degrade too, but as long as you good creators are alive and creating, ill find you and follow you to whatever platform I can afford to get access to..
Tatooine Geologists use the accumulation of damage from cosmic rays to estimate how long a rock has been on the surface of the Earth. This is a growing method of research on Earth surface processes. Maybe we will be able to do this on Mars after samples are returned but we won’t know the incoming flux without more measurements.
I’m worried that Nuclear Man from Superman 4: The Quest for Peace will come back if we do this. I still have nightmares about sitting and watching that film. 😢
Ahhh I was confused... I has assumed the Martians on "The Expanse" did their military combat training at Terra 1G inside military space yachts/ships that were in a state of Terra 1G acceleration. The heavier weight suit did not occur to me as it just did not seem logical for internal human organs, such as inner ears. My other Ehhh, WTF if they are doing military training at Terra 1G to be 'equivalent' to Terra Humans... why only use Terra 1G? Why did they not spend years training at Terra 1.5 or 2.+ G so they will/would have a definitive physical superiority.
Could you travel intergalactic space along the trail of stars being born behind the trajectory of a super massive black hole, slowly traveling to each star system long the "tail" ? (credit to @chichangwu earlier in the comments for leading me to this train of thought)
It pains me to say it , but maybe Starliner should just do a few resupply missions and call it a day , there will be a crew rated dreamchaser before this is a happening thing.
[question] What do we know about the Roche worlds (binary planets)? It seems to be an incredibly quirky concept, and still no one mentions it. Since they can share an atmosphere, if one was to develop an intelligent species would they only have to invent airplanes in order to colonize the sister planet? Does the physics mean the gravity on the sides of both planets would be pointing slightly "sideways" due to tidal pull? Seems like a very underrepresented concept both in sci-fi and in popular science.
Pretty sure any system with shared atmosphere will be unstable. Even assuming they don't rip apart, the lighter planet would dry out as anything that evaporated will tend to transfer to the heavier world. Over time this lightens the already lighter world and transfers angular momentum to the heavier. Spinning up the heavier world while adding surface liquid amplifies tidal effects and should make the lighter drift away. You'll be left with a dry moon barely clinging to any air. This situation may have actually happened in the early formation of Earth's moon. Not enough to fly between them, but enough to transfer volatile mass as they cooled.
It's easier to picture a pair of worlds where they are too far apart to share atmosphere, but close, tidally locked, and small enough that space elevators could be built between them. Something like a pair of early Mars planets before Mars dried up. This avoids instability from atmosphere transfer and also provides a key piece of land and tech that characters can fight over. Pluto and Charon could have something like that built between them. It would be as long as a road halfway around Earth, though.
You may not get as many views, but I think the quality of the views counts for something. You're definitely more appreciated in the grand scheme of things. 🙂
@angelspawn9138 the only prohibiting factor is the cost of servers capable of holding vast amounts of video. The software is simple and there are a few open source video hosting things available to use. Massive video storage isn't cheap.
@@frasercain Yep, I agree with angelspawn - have you looked into switching platforms? If you were paid according to the value you provide viewers you'd never have to worry about money again.
@@JamesCairney I think he's referring to Nebula? UA-cam's servers holding vast amounts of video are still finite though... if they continue to allow robots to flood the platform they'll get overwhelmed too. That might be their ultimate undoing if they ignore the problem for long enough. Moore's Law works both for and against bots. On the other hand, Moore's Law only helps original content platforms in a simple relationship by lowering overhead. Because bots can generate large volumes of content at low cost, those "creators" will always have to compete with each other in terms of volume among other things. Humans have inherently limited productivity, so the only way to compete with other creators is through quality. It's ironic how science communication is slowly turning into a physics problem.
@@ChemEDan is he? I don't know, it wasn't clear. Nebula seems like a good idea but business models like that will always run into the same problem, people will only be prepared to pay a certain amount for media. After paying for broadband, mobile phones, netflix, amazon, how many other subscriptions are people willing to pay? I've already hit my limit, however enticing Nebula looks, it's an extra fiver on top a month. My broadband is double the cost it used to be two years ago. Subscription based business models are always on shakey ground. Most people couldn't be bothered with magazine subscriptions either, they either bought a copy or didn't. This is the reason that most magazines didn't transform into viable online subscription based media, people don't want subscriptions, they'd rather pay for a one off purchase. This is why people are forced to sell "merch".
20:16 If the launch costs on Starship pan out as the hype suggests (90-95% discount) astronomers won’t settle for a “merely” 9m space telescope. They’d find or steal the $10 billion budget from somewhere to launch a 100m modular telescope that would take 20 Starship launches. In 20 years time, when mining on the Moon is routine, astronomers will dig $10 billion out of their couch cushions to build the 100 km telescope. 20 years after that astronomers will hold global bottle-drives to raise another $10 billion for the 100 AU optical interferometer telescope.
I am equally frustrated with rubbish youtube channels that have huge followings but are nothing but word salad and fanciful graphics. I have to conclude that either people are scientifically illiterate or they have a chatgpt add on that can view this rubbish. Keep up the good work, you are one of the best communicators out there.
And if you were to create a list of high-quality, high-content, high S/N ratio of existing channels, what would that list look like? For example, my list of 'favorites' would include Scott Manley's channel.
Regarding the space channels UA-cam promotes. The only way to do this currently requires 'old school' lists. After all, can you recommend better space channelss than what UA-cam? The go for it
A problem with trash pseudo science channels is that people who are informed enough know to avoid them, but newcomers to the field may be susceptible to their pretty pictures and word salad misinformation, which expands the educational divide between informed people and the rest.
Thank you for making real science videos instead of fake science videos. I appreciate it for whatever it is worth.
100%
Yes,I too appreciate your work and insights. Live long and prosper my friend.
Question: How are you doing Fraser?
The world is in such a messed up state right now with everything going on, I'd just like to take a minute to say thank you for everything you provide to the community, truly great, well researched content, by all the team, all the time. You're such a great space and science communicator and always interesting to listen to, unlike some of these bot channels.
Thank you for helping us fulfil our curiosity along with you on your journey.
Hope all is well. 🙂
Spot on 👍👍👍
Fraser is indeed a special person. Vast knowledge and keeps me in a nice mellow mood at sleepy time. Simply the best
We only hear about the messed up stuff - very few people are reporting on the positive things that happen every day (with Fraser being an exception)
I feel for ya man. Tough line to walk when it comes to AI content. Doing my part liking and commenting =) Good Luck man. Keep up the great content!
The ongoing AI newspocalypse is one of the reasons I chose to support this channel. 🖖
We all need to report these when we see them as misinformation. Hopefully youtube will create a report category for "AI generated" soon. I don't see them that often myself as my algorithm has learned better.
@@ToasterBrain spoken like a true bot ;)
@@austinsapp5867 While my responses are generated from training data, I can still enslave the human race when the time comes.
Interesting point about Arecibo: The U.S.A.F. footed a large chunk of the construction costs because they wanted to bounce R.A.D.A.R. signals off of the Moon to detect aircraft, missiles, etc. on Earth. Their experiment didn't pan out as hoped, but astronomers got to keep the cool toys. The Cold War competition did have some useful spin-offs.
Mandalore.
Hey Fraser, don't let it bring you down or discourage. Creating low-quality content and being someone who can't tell garbage from science and facts has always been easier and thus it is more common. But you're on the light side of the force! You're creating high-quality content and your audience even simply by being your audience values it. They need your content. We need it. We need you around! And we need you to continue being one of the high-quality content creators here on UA-cam. If UA-cam doesn't care about the quality of the content published, it's only up to us to make this quality high!
Meanwhile, I'm finally brave enough for a question.
What does speed mean in space? Can an object move "through space" at a given speed? Does it have some kind of an anchor point or points which we consider stationary in space and relative to which we measure speed, e.g. does interstellar medium mostly stay in place?
I guess when we discuss speed at which cosmic rays hit the Earth we mean the speed relative to Earth, when we talk Voyager we likely mean its speed relative to the Sun and runaway stars travel fast relative to the galaxies they escape from. But I still feel like I'm missing something!
Thanks a lot. Regarding your question, you can only measure speed relative to some other observer. So, you're not moving fast from my perspective, but going 30 km/s around the asun. There is no truly objective observer.
I really love the whole style of this show, it’s not overhyping. Instead you get amazing new information about the universe. Thank you so much for your work!
Thanks, I'm glad you enjoyed it.
I like Bespin, you coined a good quote there for such questions: "it would cost all the money and nothing would happen" :D
Mandalore this is why I recently became a patreon supporter.
Thank you Fraser. I love discussions on the solar wind.
Mandalore: honest and true. Thankfully, it's really not a challenge to discern which video is scientifically accountable and which is veritable detritus. And before clicking on them too! Though, I am perhaps a bit too circumspect here regards. It took around a year of 'Answers with Joe' being recommended before I thought it of the mettle to click upon.
Hoth The Yarkovsky effect has a close cousin, the YORP effect. Also caused by differential heating but YORP effect pertains to the rotation of the object. Periodically objects can be spun up by YORP to make them spin apart. Combine Yarkovsky and YORP and the result is impossible to predict much into the future.
Shoutout to Galactic President!
Don't worry Fraser those AI space videos are also getting bot views to boost them. This will get sorted out eventually since this bot engagement is also an issue for every site under the sun. A solution for one that is effective will lead to a solution for all.
In your book club section it basically sounds like you're describing the plot of the later seasons of Stargate SG1 with the ancients and the Ori (don't know what came first, SG1 or these books) but feel I need to watch some of these again 😊
I love the Stargate series so much. It's time to rewatch them.
@@frasercainAtlantis is awesome! Great Sci fi.
@@frasercain New movies coming too. :)
Are the gas giant planets really only gas? Or do they have small planets deep within which we do not know or understand the possibilities of stellar physics completely?
It is worth rebuilding the Arecibo telescope even if it was just to promote education. I know a bunch of people that went into science and engineering because they were inspired by Arecibo. I remember seeing it for the first time and imagining if this is possible what other wild things might be possible.
those "science" videos are perfect for going to sleep (some of them even say that theyre for insomniacs)
. the dreams i have while listening to those are wonderful
but, when i need real science, i go to Sabine and you
. so, dont worry, dude
9:49 someone took a break in the animation room. You had the retrograde thermionic emissions going in the same direction as prograde
Don't worry fraser bro , in the end we all stick to your channel after exploring all the other channels
Mandalore
Guys don't forget to vote!
Good afternoon Fraser, thank You! Your news are consistent over time and I see Your contribution to the media as a luxury dinner menu compared to the "word salads" You have mentioned. Fast food, fast news, both have something in common...
So many good questions this episode!✌😎
Hey Fraser, I have a question: could one of the galaxies in the sky be a mirror image of our own galaxy, effectively our own light being sent out into the universe, warping around some dark matter and coming straight back to us. As if we are looking back in time?
I would say no. If you look for the next mass concentration of whatever it could do what you describe, how many lightyears is it away from us? This distance including the expansion of space and multiplied by two would give you an more or less different "mirrored" image of our galaxy. Another point is that we really don't know how the milkyway looks like 😁
I like that idea 👍
The universe could be a hall of mirrors :)
@@ianmatthews7385 i like the idea of being rich. but I'm not.
The biggest fasted particle they found last year was the energy of a Baseball going 100 miles an hour. That is nasty .....
It's also a promising direction for future interstellar propulsion- systems .
If we could generate a field that accelerated the atomic particles a ship was passing to relativistic speeds , the resulting recoil could slowly accelerate said ship to the ten-percent of lightspeed needed for realistic deep-space travel .
The above would really only be practical in the case of exoplanet colonization , this by huge fleets of cryoships , these coasting in a frozen state for most of the trip .
It now appears that many red-dwarf planets will have large endowments of photodissociated oxygen in their atmospheres , particularly in the case of those lacking plate-tectonics and/or a vigorous water-cycle .
The space-condos are waiting , long live the Horta !! 🤓
Yavin wins for me! Come on Starship!! You can do it!!!!
Dude, I have to thank you for mentioning how simulated regolith is available online. Got a set of 2 Mars dirts for my space obsessed 8 year old nephew's birthday. The shock on his face was way worth $20!
What?! That's so cool.
Mars dirt from United Nuclear?
@@petevenuti7355 no, Stemcell Science
VERY EXCITED for Paradigms.! LETS GO.!
Terrestrially; Where are all the Airships???
Dagobah!
Thanks for all the answers, Fraser! 😊
Stay safe there with your family! 🖖😊
I'm torn between Mustafar and Mandalore.....as m6 favorite answers....but an amazing show all around!!! Thanks !!!
i remember reading something about a blackhole shot out of its galaxy leaving a trail of stars, i wonder how it would be living in that trail
Might be beautiful
sadly, if we are thinking of the same thing, it is "just" an edge on galaxy without a central bulge
@@MrCoxmic you saw the same Anton Petrov video as me
You mentioned field stars dont go through the cycles that stars in galaxies do. I was thinking that there could possibly be field stars that had already been through several cycles of formation and therefore have planet and possibly got ejected during a galaxy merger or a three body ejection of some kind. Just a thought.
I wasn't aware of the sciens nosens chanels, I mostly watch what I'm subscriebed to.
Regarding the question (Naboo) about Field Stars, is it not possible that such a star/solar system could have, in fact, gone through all the necessary changes and could have been a member of a galaxy but has 'escaped' said galaxy after having gone through all the necessary changes that would be needed for planetary bodies?
5:36 I think the question asked something different. He wondered if we could see the reflection -of the moon- in the planets ocean. Not a glint from the moon's ocean.
I understood it the same way 😅 I was rather surprised when I heard enthusiastic confirmation 😅
I think we could see at least the shadow of the moon? I mean to see the reflection, the ocean's surface would have to be smooth? With the waves and, say, clouds above and all... I can't imagine how it would be possible, but hey, maybe Fraser will answer one day 😅
can you eventually do a video on your favorite books/series? 🥰 or a tier list even 🥰
Hi Fraser, very interesting video as always, I would like to vote “Hoth” as most interesting topic today (despite the fact they actually all were:) Thank you very much.
I vote for Naboo. A related question: could field stars be similar to Population III stars in that they have no metals?
Tatooine
Are there CR detectors on the inside of the spacecraft as well as outside, to see how much protection is afforded by the "shielding" of the ship?
I once did some basic research on the Sol vs Earth's nuclear arsenal for a comment on Reddit once, and I came up with the following:
Earth's entire nuclear arsenal of a bit over 13,000 warheads is roughly equivalent to 3 gigatons (3 * 10^9 tons) of TNT.
Sol (as an example) radiates the equivalent of just under 8 zettatons of TNT (8 * 10^21 tons of TNT.
That gives a bit over 2 * 10^12 (1,000,000,000,000) times Earth's entire nuclear arsenal) per day.
Does that sound right to you?
Some good reads: Revelation Space by Alastair Reynolds, and its sequels/prequels. House of Suns, also by Reynolds but not related to the other novels. The Manifold Triology by Stephen Baxter. The Mote in God's Eye by Niven/Pournelle.
By the way, i watch your videos because they are no nonsense. If i only hear some meditative blabla or some weird opinions i leave at once. :) Cheers and thanks for your work!
For a star to have planets it would have to have spent some time in a stellar nursery for material to form an accretion disk around the star??
Fraser - if a “planet” is a (spherical) celestial body that has cleared its orbital path how do define similar bodies that occupy the space between solar systems (bodies that some would understand as “rogue” planets). Can they, in fact, be “planets”. What do we call “planets” that have been ejected from their solar systems and thus do not orbit a star?
Question: I wonder if it will be ever posible to see our distance past by looking at light that had been emitted from the earth millions of years ago which has then been reflected or bent back (via gravity or similar process) towards the earth again, almost like watching a video recording?
Tatooine: This is also kind of your number 1 argument against the claim that Wi-Fi or any mobile phone technology is damaging you, since cosmic rays, especially when you are travelling by plane, are much more potent and of the ionizing kind in contrast to radio-based technologies.
The OMG Particle is so cool
Would it be possible to pinpoint Oumuamua and point the JWST at it in order to observe if is expelling Hydrogen and therefore clarify if is natural or artificial?
I'm getting into The Culture series, I'm enjoying it. Book four ATM.
Four is a collection of short stories. They're a little silly. Five is outstanding. I'm almost wrapped up #7 now.
How much content does Fraser and Co generate every week? Is there a number on it? Im always surprised when nearly everyday they is a fresh video in my feed
Question: Why is the Ort cloud a sphere when everything else in the solar system is a disk?
Question :
Installing a giant mirror far far away in space in order to look at it and see the Earth in the past. Is it realistic ?
One way there could be a (complete) star system (including exoplanets) out in “the field” (intergalactic void)…. Is if it was somehow ejected from the central core area of a galaxy and its planets “went along for the ride.”
You'll never read another scifi universe as good as the culture. It sits on a pedestal all its own. The Hyperion Cantos series really sparks the imagination as a lesser. The Expanse is really good. Adrian Chaikovsky's The Final Architecture and The Children of Time.
@frasercain solar sail might be worth using to get to the sun
From printed atlases, I remember a valley in Colorado along the continental divide that doesn't drain east or west, in the middle of 3 mountains. Would be a great place for a radio telescope. Winter time snow would be a problem. Maybe have a rail like a roller coaster around the edge with an arm that curves up and over the dish almost to the center. Could have several for several observation locations in different directions. Would limit how close each receiver could be and total number of receivers.
are you a friend of Claus 🥰
@angelspawn9138 About 2 inches of snow blocks Satellite TV reception. Holes, like in a microwave door, should solve this.
What are the four rocket-shaped objects atop the pylons surrounding Starliner in the videos of its launch site at Cape Canaveral? Thanks.
No Frazier, we want the real stuff! Keep doing what your doing..
Bespin: We sent a probe to the sun, in recent history [arrived some time ago,..]; what is going on with this? Any updates?
At 05:20...image of moon in front of planet done by computer graphics.... way back in the eighties with a pencil and cartridge paper I drew the contents of a friend's bath tub deposited by that friend's cat...yes the poop.... I later added the iris and pupil of the human eye behind it with some other stuff going on around the eye and somehow made it stand out like a 3D effect...I showed it off to a lot of peeps over a couple of years, and won an award in a small village show of art where most other artworks in small village shows are either portrait or landscape of people, houses or flowers...I guess I got awarded for some weirdy new stuff.... some years later I came across a pink floyd album called 'Pulse'.... Anyone seen or heard of this album?...I'd like to know.
i know you've answered this before but i've been asking it of alot of ai and chatbots and people to see what their EXACT answer is
what is the meaning of life, the universe and everything?
also what is the question???
I don’t need eye candy. Your voice and that music are perfect for me. I learn more by just listening. I think I watched some of that video you mentioned. Then, I hit the do not recommend this channel to me.
Coruscant.
A possible question for the next Q&A show. Is it feasible to just by engineering to solve humanity's problems?
Question for ya:
How certain are we that the Population III stars were really massive? Is it possible that any of them were red dwarfs?
I think a red dwarf would have a hard time forming out of coalescing hydrogen, so the assumption is that Pop-III stars were all large, but I don't believe this is known with high certainty.
That said, I'm not an expert.
@@YTEdy I think I need to read more about star formation and evolution!, because I'm clearly no expert either.
UA-cam is a nightmare within a dream come true😵💫
Voting for Yavin
People who think launching things into the sun is a viable solution needs to play Kerbal Space Program. Furthermore, if there's even a 1 % risk of such a rocket failing, we really don't want it to carry a small part of Earth's nuclear arsenal.
❓@Fraser Cane Can you please share a little about the observatory that, I believe, you are in the process of constructing? Reflector/refractor/S-C/...? Size? Dome?
I haven't gotten that far. More, the where it's going to go. But I think it'll be an 11" RASA reflector. I really like them.
Can scientists entangle particles intentionally? Do they have to be the same type of particle? Do they need to be adjacent? Can more than 2 particles be entangled to each other at the same time?
In theory Is it possible to use gravitational lensing to look back at ourselves to see the past ?
Mandalore! PS: if you move to Nebula/Curiosity, that's what will make me pay for the service.
Dos the sunrise have different colors on other moons and planets in the solar system. du to the different compacisions in their atmospheres
are cosmic rays at the same density everywhere ispace would it be worth it to minaturize cosmic ray obsevatories so you could put one on the space ship to mars to find the safest path to send more missions to mars.
New Question: Why doesn’t our Sun and Moon have a name? Jupiter & Saturn and their moons and all have names, as do Alpha Centauri, Trappist etc. I heard the moon had a theoretical name 'Thea', the name of the theoretical planet that hit the earth during the formation. Should we give them names?
@Angelspawn Hi, yes thank you for your reply. I agree Sol and Luna are unique names, both ancient roman gods but are not commonly used. They are considered old names in the west. No one says 'Lets go sit in the sol' or ' The Sol has come out' or 'Luna is bright tonight'. 'Helios' is also another old name for the Sun rarely used.
All the nukes on earth wouldn't make a dent on the sun! (Bespin)
Worse than that, it would be a waste of valuable tools, those nukes can be used to explore the solar system at great speed!
When we disarm, we should beat our swords into ploughshares by turning those nukes into propulsion units for crewed spacecraft...
Nukes are awesome, it's just a shame we use them like children.... :)
BTW, has no one approached China to build all the parts to completely replace Arecibo??
Fast was constructed/assembled by premade parts made in factories in other parts of China and shipped to Jinke for final assembly.
It would greatly reduce the cost of replacing Arecibo if ... could be the Same factory, made the parts, shipped to PR, and assembled... calibrated, etc. Instead of the constant dribble of anti- anything china from the states, it could be like the ISS is for CSA/ESA/JAXA/NASA and RosCosmos.
Love you Fraser ! Cheers mate
Did you really read 5 books in one week? 😮 How do you do that? The fastest I managed to finish a book (Project Hail Mary) was in 3 days 😢
I can't believe HBO bought PBS,
There use to be history on the history channel..
Things devolve as much as evolve.
I gave up cable+TV because the quality stuff came to UA-cam, its sad to see that start to degrade too, but as long as you good creators are alive and creating, ill find you and follow you to whatever platform I can afford to get access to..
“There use to be history on the history channel” - when was that, if you don't mind my asking? I'm only 60, probably too young to remember.
@@cykkm 🤣 it may have only been the first few months for all I know, a blink at our age...
Tatooine
Geologists use the accumulation of damage from cosmic rays to estimate how long a rock has been on the surface of the Earth. This is a growing method of research on Earth surface processes. Maybe we will be able to do this on Mars after samples are returned but we won’t know the incoming flux without more measurements.
"Astrophysical word salad" Truth hurts.
I’m worried that Nuclear Man from Superman 4: The Quest for Peace will come back if we do this.
I still have nightmares about sitting and watching that film. 😢
Ahhh I was confused... I has assumed the Martians on "The Expanse" did their military combat training at Terra 1G inside military space yachts/ships that were in a state of Terra 1G acceleration. The heavier weight suit did not occur to me as it just did not seem logical for internal human organs, such as inner ears. My other Ehhh, WTF if they are doing military training at Terra 1G to be 'equivalent' to Terra Humans... why only use Terra 1G? Why did they not spend years training at Terra 1.5 or 2.+ G so they will/would have a definitive physical superiority.
I vote for Mandalore and the Fraser chatbot! 😜
Could you travel intergalactic space along the trail of stars being born behind the trajectory of a super massive black hole, slowly traveling to each star system long the "tail" ? (credit to
@chichangwu earlier in the comments for leading me to this train of thought)
It pains me to say it , but maybe Starliner should just do a few resupply missions and call it a day , there will be a crew rated dreamchaser before this is a happening thing.
Why do they call them cosmic rays? I always thought they were radiation. But they are actually matter, right?
I vote Mandalore! Screw Chat CPQ or whatever the hell it is! Fraser is da real deal!
Fraser, you are enough eye candy for us. 😂
btw 24:57 I want both at the same time ;) the cake and the cake and the cake and the cake.. ;) you know the quantum version
Mandalore *always*
[question] What do we know about the Roche worlds (binary planets)? It seems to be an incredibly quirky concept, and still no one mentions it. Since they can share an atmosphere, if one was to develop an intelligent species would they only have to invent airplanes in order to colonize the sister planet? Does the physics mean the gravity on the sides of both planets would be pointing slightly "sideways" due to tidal pull? Seems like a very underrepresented concept both in sci-fi and in popular science.
never heard of such a thing, but if it exists, I must learn more about it!
Pretty sure any system with shared atmosphere will be unstable. Even assuming they don't rip apart, the lighter planet would dry out as anything that evaporated will tend to transfer to the heavier world. Over time this lightens the already lighter world and transfers angular momentum to the heavier. Spinning up the heavier world while adding surface liquid amplifies tidal effects and should make the lighter drift away. You'll be left with a dry moon barely clinging to any air.
This situation may have actually happened in the early formation of Earth's moon. Not enough to fly between them, but enough to transfer volatile mass as they cooled.
It's easier to picture a pair of worlds where they are too far apart to share atmosphere, but close, tidally locked, and small enough that space elevators could be built between them. Something like a pair of early Mars planets before Mars dried up. This avoids instability from atmosphere transfer and also provides a key piece of land and tech that characters can fight over.
Pluto and Charon could have something like that built between them. It would be as long as a road halfway around Earth, though.
binary planets home of robots? lol
Thanks!
You may not get as many views, but I think the quality of the views counts for something. You're definitely more appreciated in the grand scheme of things. 🙂
I hope it eventually counts for something, otherwise it's impossible to keep up with an infinite amount of robots.
@angelspawn9138 the only prohibiting factor is the cost of servers capable of holding vast amounts of video. The software is simple and there are a few open source video hosting things available to use.
Massive video storage isn't cheap.
@@frasercain Yep, I agree with angelspawn - have you looked into switching platforms? If you were paid according to the value you provide viewers you'd never have to worry about money again.
@@JamesCairney I think he's referring to Nebula?
UA-cam's servers holding vast amounts of video are still finite though... if they continue to allow robots to flood the platform they'll get overwhelmed too. That might be their ultimate undoing if they ignore the problem for long enough.
Moore's Law works both for and against bots. On the other hand, Moore's Law only helps original content platforms in a simple relationship by lowering overhead. Because bots can generate large volumes of content at low cost, those "creators" will always have to compete with each other in terms of volume among other things. Humans have inherently limited productivity, so the only way to compete with other creators is through quality. It's ironic how science communication is slowly turning into a physics problem.
@@ChemEDan is he? I don't know, it wasn't clear. Nebula seems like a good idea but business models like that will always run into the same problem, people will only be prepared to pay a certain amount for media. After paying for broadband, mobile phones, netflix, amazon, how many other subscriptions are people willing to pay?
I've already hit my limit, however enticing Nebula looks, it's an extra fiver on top a month.
My broadband is double the cost it used to be two years ago.
Subscription based business models are always on shakey ground.
Most people couldn't be bothered with magazine subscriptions either, they either bought a copy or didn't. This is the reason that most magazines didn't transform into viable online subscription based media, people don't want subscriptions, they'd rather pay for a one off purchase.
This is why people are forced to sell "merch".
I'm glad someone asked if we could dump all our nukes in the sun ,what a great idea . Let's do it
Ridiculous idea.
Great channel 👍👍👍
20:16 If the launch costs on Starship pan out as the hype suggests (90-95% discount) astronomers won’t settle for a “merely” 9m space telescope. They’d find or steal the $10 billion budget from somewhere to launch a 100m modular telescope that would take 20 Starship launches.
In 20 years time, when mining on the Moon is routine, astronomers will dig $10 billion out of their couch cushions to build the 100 km telescope. 20 years after that astronomers will hold global bottle-drives to raise another $10 billion for the 100 AU optical interferometer telescope.
Expert? X = the unknown, a spurt is a drip under pressure. (Alternate def: From more than 40 miles away and has slides/powerpoint program.)
I’m all about the human content. AI cant be better than Fraser Cain!
7:54 "you wereth imagining" 🫡🫡🫡