Asteroids: Crash Course Astronomy #20
Вставка
- Опубліковано 5 лип 2024
- Now that we’ve finished our tour of the planets, we’re headed back to the asteroid belt. Asteroids are chunks of rock, metal, or both that were once part of smallish planets but were destroyed after collisions. Most orbit the Sun between Mars and Jupiter, but some get near the Earth. The biggest, Ceres, is far smaller than the Moon but still big enough to be round and has undergone differentiation.
CORRECTION: In the episode, we say that 2010 TK7 is 800 km away. However, 2010 TK7 stays on average 150 million kilometers from Earth, but that can vary wildly.
Sorry about that!
Check out the Crash Course Astronomy solar system poster here: store.dftba.com/products/crash...
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Chapters:
Introduction: Asteroids 00:00
What are Asteroids? 1:37
Structure of the Main Belt 2:18
Ceres's Structure 3:43
Vesta and other Main Belt Asteroids 4:38
Rubble Piles 5:16
Why did the Asteroid Belt form? 6:20
Mars-crossing, Apollo, and Aten Asteroids 7:16
Trojan Asteroids & Lagrange Points 8:25
How Asteroids Get Their Names 9:53
Review 10:41
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PHOTOS/VIDEOS
Timelapse of Asteroid 2004 FH's flyby en.wikipedia.org/wiki/File:Ast... [credit: NASA/JPL Public Domain]
Asteroid Discovery Video • Asteroid Discovery - ... [credit: Scott Manley - scottmanley1972@gmail.com]
Inner Solar System en.wikipedia.org/wiki/File:Inn... [credit: Wikimedia Commons]
Kirkwood gaps commons.wikimedia.org/wiki/Fil... [credit: Wikimedia Commons]
Ceres, Earth & Moon size comparison en.wikipedia.org/wiki/File:Cer... [credit: NASA]
Dawn Glimpses Ceres’ North Pole www.jpl.nasa.gov/news/news.php... [credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA]
Ceres cutaway commons.wikimedia.org/wiki/Fil... [credit: NASA, ESA, and A. Feild (STScI)]
Bright Spot on Ceres Has Dimmer Companion www.jpl.nasa.gov/spaceimages/d... [credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA]
Vesta en.wikipedia.org/wiki/4_Vesta#... [credit: NASA/JPL-Caltech/UCAL/MPS/DLR/IDA]
Lutetia en.wikipedia.org/wiki/21_Lutet... [credit: ESA]
Gaspra commons.wikimedia.org/wiki/Fil... [credit: NASA]
Steins neo.ssa.esa.int/image/image_ga... [credit: ESA/Osiris]
Mathilde neo.jpl.nasa.gov/images/mathil... [credit: NEAR Spacecraft Team, JHUAPL, NASA]
Ida en.wikipedia.org/wiki/243_Ida#... [credit: NASA/JPL]
Kleopatra apod.nasa.gov/apod/ap000510.html [credit: Stephen Ostro et al. (JPL), Arecibo Radio Telescope, NSF, NASA]
An artist's conception of two Pluto-sized dwarf planets in a collision around Vega. en.wikipedia.org/wiki/Methods_... [credit: NASA/JPL-Caltech/T. Pyle (SSC)]
Itokawa apod.nasa.gov/apod/ap140209.html [credit: ISAS, JAXA]
An artist's illustration showing two asteroid belts and a planet orbiting Epsilon Eridani en.wikipedia.org/wiki/Epsilon_... [credit: NASA/JPL-Caltech]
Near-Earth Asteroids www.jpl.nasa.gov/images/astero... [credit: NASA/JPL-Caltech]
Lagrange Points Diagram en.wikipedia.org/wiki/Trojan_(... [credit: Wikimedia Commons]
TK7 en.wikipedia.org/wiki/2010_TK7... [credit: NASA/JPL-Caltech/UCLA]
165347 Philplait www.slate.com/content/dam/slat... [credit: Larry Denneau/Pan-STARRS via Amy Mainzer]
Probably my favorite Crash Course series.
Or shall I say Ceres?
PogieJoe #punny
PogieJoe Are you Sirius
TheBlaaackSheep Juno what you just started here?
PogieJoe Would the Vesta you, keep it down?
PogieJoe not to be your NEMESIS but i TheMIS-ed the punchline. Anyway THISBE a war now. Its Ko to be mad.
I am extremely sorry.
"the universe is under no obligation to adhere to our expectations."
that should be on a poster with like a galaxy in the background or something
I like it.
***** Or some weird astronomical phenomena that we don't really understand, like the alcubierre drive and it's relation to "faster-than-light" travel that *doesn't* break the laws of physics.
***** I would have a universe simulation instead. The threads of galaxies that form in a sponge pattern is beautiful.
***** Here here... it's a great reminder. :)
Agreed. Or maybe on a t-shirt. I'd totally wear that.
Seriously no mention in the comments about how this guy has a SPACE OBJECT NAMED AFTER HIM?
He does?
!!!!!!!!!!!!!
It's amazing!
I thought it must be coincidence
i think he found it.. after all he's an astronomer doesn't he?
I really like Phil as a narrator!
Tom Sharman I think he's the best of all the Crash Course hosts - even better than John Green!
Phil Plait FTW! It's kind of funny, this feels so far removed from all other crash course series. Phil and John are both delightful but I'm a little biased towards astronomy :)
Tom Sharman Agreed, he is an excellent narrator for an excellent series.
I hope we get to keep him! ^_^
He's really good.
"The universe is under no obligation to adhere to our expectations" my favourite part in the whole series so far
"Don't worry, they really have a small chance to hit us"
*say that to the Dinosaur.*
***** Or did they?...
IndraEMC Well, hit by asteroid after a 160 million year long reign isn't a bad statistic.
***** we actually hit by asteroid every day, yes.... EVERY SINGLE DAY, even though most of those asteroids only as big as grain of sand or the largest of "daily asteroid" are just as big as palm of adult hand.
IndraEMC
I smell a smartass here.
I should have mentioned: "went extinct by an Asteroid impact..."
I know, that earth is hit by space debris every minute.
lol
Seems like a good place to remind people that June 30th is Asteroid Day and there'll be a bunch more asteroid themed events.
Scott Manley Kerbal's on the desk!
Scott Manley Your videos are why I care about this whole field of science! Thank you!
Scott Manley Whhhooo scott manley
Hullo
Scott Manley You are the best ksp youtuber EVAR!!!
This was Ceres-ly fun.
Christophe L Looks like someone enjoys watching this Ceres.
Dennis Chiu juno what? I'm done
+Christophe L I'm Sirius when I say I'm done with you guys.
I will disown you, sun
@@HeyKevinYT If we could cut it with the star puns, that would be stellar, thanks.
Damn, to have your name floating around, orbiting the Sun in space is awesome! You have a pretty cool friend, Phil.
aws35 And Phil, himself, too! Phil too!
-Nicole
CrashCourse Phil is awesome!
Technically, all of us have an object with our name floating around, orbiting the sun in space. It's us! Each and every human being orbits the sun. Phil is special because there's TWO things with his name floating around in space! ;)
Aron en Ark Well, that's a way to look at it, too. Haha
How do I get my name in space. I have free weekends. How do u distinguish a named object from an unnamed one. I will officially make my parents proud too. 9-5 job for 30 yrs in mess of global issues isn't going to make me famous(ordinary fame may last 3 gen).
So you've got an asteroid named after you!? You rock! (got it!?)
For Sirius?
En Route
It took me some seconds to figure that one out! Good one! ;)
L Galicki NERD
L Galicki I get it 😂😂😂😂
Yuri Lubiano And very proud of being one! 👍
you could say that some of the asteroids are on a .."Crash Course" :D
Asteroïd : Small planet.
Planet : Big Asteroïd.
Everytime I'm scrolling through my UA-cam feed, I'm hoping to see a new Crash Course Astronomy upload, and whenever I see one, it feels like Christmas! Keep it up!
Sane here! Haha
Rudy_Eila Pssst... it's always on Fridays.
Moritz Durtschi I know, but with too many things I look forward to watch, it's hard to remember days... I just look through my feed everyday, looking for interesting things.
W
ikr, this Ceres is amazing!
Why would people thumb down this video? I've been into Astronomy for about 20 years now & these videos help newer people to understand what's out there.
Nowan Inparticular I agree.
Probably someone clicking on a thumbs up... But by mistake did so?
Vladimir Putin I beg to differ Mr Putin. Probably arrogant atheists who think they could do better ;) In all honestly lets just assume that some people can't appreciate a good video when they see one. Nothing to do with religion.
Vladimir Putin I dunno. I disagree, but that's ok- so long as we respect each other. I'd say majority (at the very least a large portion) of christians aren't solid on the belief that the universe is only a few thousand years old. There's too much evidence to suggest otherwise AND the Genesis account is written in such a way that it makes just as much sense to take it as figurative poetry than as a historical account. Often it's easy to tell, but in the case of Genesis 1, there are differing opinions. :) Anyway we can all agree on 1 thing: that these videos are awesome!
I don't even think you have to respect each other, I ask that you're cordial to one another because it's a thread I started but even that's merely a request & as easy to ignore as anything else on the interwebs. I'm with Gandalf though, the Crash Course Astronomy videos are great. Sci-Show Space is pretty good with Astronomy as well
"The universe is under no obligation to adhere to our expectations."
I love it!!
You forgot to do a planet episode on PLUTO. :) :);)
rebelyell1983x It's an Edgeworth-Kuiper belt object.
rebelyell1983x Hopefully they wait till July to do that.
Scott Manley Hi Scott! you should teach Phil ksp
rebelyell1983x Probably because it isn't a planet
Actually Pluto is a dwarf planet
The last one made me smile.
OMG! PHIL FOUND A ASTEROID!!!
GodGamerz AND NAMED IT AFTER HIMSELF!
Now I'm jealous,I want a Asteroid named after me
+Sotiris Krol same!
Actually, I'm pretty sure that he didn't find it himself, but a friend who did find it named it after him.
yeah Jeff Medkeff.
omggggggggggggggg you have asteroids named after you.....that's so awesome......
You are one of the coolest astronomers ever. I absolutely love learning from these videos! Thank you so much for sharing your expertise and keeping science fun!
Even though technically it's just a pebble floating in the vast nothingness of space, it's still pretty cool that it bears your name.
I love watching this show. Really. Not just because I love space and planets and the unknown of the universe but because Phil seems to love these things so much that you can't help but share his excitment.
7:32 Darn you got me.
Beastinvader heheh me too
I'd just like to say thank you for doing these videos. They are so helpful while studying and so much for to learn about something you're interested in. Thank you all so much
You really go beyond standard curriculum material. The level of some of the details you point out really stretches into BSc stuff, which is really cool. My praise is thine, keep up the good work!
"So On *Not an Asteroid" I laughed xD
Star Fox FTW!
FunkyHonkyCDXX YES! I flailed a little too.
-Nicole
My favorite part of this series is still the intro. That little animated version of Phil looks so happy and enthusiastic, I love that! :D
My favourite asteroid is 24601 Valjean.
Definition of "Scientific Process" = "probably everything I'm about to tell you about this is about to become obsolete."
This has been my favorite thing to look forward to on Thursdays! I love this series so much that I'm going to take Astronomy in Summer! I hope I do well... I plan on re-watching all the episodes before school starts :)
After you finish the current series could you do some on the different space missions? Half the time you mention something being discovered by something I've never heard of it
StaticV Not sure what's coming next just yet, and requests for one-off videos is a bit tricky, since we always operate off of a syllabus. However, a good place to start looking for more information would be SciShow Space! They're pretty cool ;)
-Nicole
CrashCourse I wonder if John Green, and Phil Plait could do a collaboration for a History of Space travel. I would watch that.
Amazing video as always! Thanks for teaching me something new!
Thanks for another great episode, Phil! Really love this subject and its so easy and interesting to understand like this.
I love these videos. Got hooked with the Chemistry series, and anchored by the Astronomy. The only thing I anticipate each week is the next video! Well done team.
The astronomy videos are my favorite. Makes all those high school rocketry classes worthwhile. I absolutely love the little kerbals there.
I only just discovered this series (1 Dec 2019). Absolutely love it!
Good job guys, I've been watching everything single episode... Thank you!
Very informative indeed!
Thanks for uploading.
Love this series. Fantastic videos.
This has to be my favorite CC series ever. Phil Plait is an awesome host!
I love this series of Crash Course. I find myself gazing into the stars nearly every night, seeing if I can spot our neighboring planets. I'm saving up for a modest little telescope now just so I can get a better look. All of this is thanks to this series.
One of the most beautiful, and I guess frustrating as well, is how much astronomy seems to grow; Phil Plait admits to the information he's sharing about asteroids possible being obsolete one the Dawn probe comes with information, and THAT'S beautiful. The universe isn't static, and learning is mutable.
Yay!! Star Fox reference at 3:18
Crash Course Astronomy is an amazing Ceres. Keep up the good work!
SCOTT MANLEY WILL TAKE OVER UA-cam ( or atleast astronomy / orbital mechanics in general )
Thomas PlaysTheGames
How 'bout no.
***** How 'bout he already has.
I'm in love with your videos!!
I love this series so, so much.
I usually see the John Green videos of this channel, but to be honest this guy is great! Go Phil!
Best Crash Course Astronomy episode yet. Jupiter looking like a Pac-man ahead of mars was hilarious.
This is a great series. Very very well made.
I would just like to say thank you very very much because a few days before my exam on 'Observing the Universe' last summer I was very confused and didn't think I knew much at all. With help from this series (which made me want to understand more) and a revision guide, I managed to get an A* in that exam- my final GCSE exam. I am proud of that mark and I am extremely grateful :)
Do a barrel roll!
I love this series.
This is my favorite series!
I did a project in 2nd grade on the asteroid belt. This episode is reminding me why I fell in love with astronomy.
Phil Plait you are a fantastic teacher. Thank you for explaining the universe so well
Will you do a future video that goes into more detail on Lagrange points? I'm most curious about the difference between stable and unstable Lagrange points.
Looks like somebody on the production team is really into Starfox ;) Nice homage to the Arwing.
(Also, love the appearance of the Kerbalnauts.)
It is freaking awesome that you have an astroid named after you. Good for you!
This is a great series!
9617 Grahamchapman
9618 Johncleese
9619 Terrygilliam
9620 Ericidle
9621 Michaelpalin
9622 Terryjones
can't wait for the next episodes
Thank you Thought Cafe for your excellent work. You bring visual life to what would only be interesting words.
Great video! Love the series and Phil.
Nick Sibicky Love the series and Phil.
Love the arwing animation - and of course the barrel roll!
Thanks for the info!
These vids are so cool! :D Good job!
dude i love you! keep it oon!!!
Really enjoyed this episode, looking forward to Comets :-)
thats so cool how he discovered his own astroid
Pluto was a planet for quite a long time, maybe it still deserves an episode? Also the objects behind it are pretty interesting too! Maybe someday we will see an episode about them?))
Great series, thank you very much for it!!!
I love this course, keep up the good work guys! One little note, you misspelled "Giuseppe Piazzi" with Giuseppi
Another top-notch episode. Also, "props" to the set designer of this series (pun intended.)
"The Expanse" has totally got me watching videos about space objects like never before! Definitely the most compelling sci-fi TV series or book series I've ever got into! Got so many questions now like: "Where exactly is the asteroid belt?.... Ceres?? I know Ceres!!!...."
how cool! in this one i learned something new!
You have your own asteroid!? That's so awesome!!
This made me happy :)
Love this series! than you!!!
CrashCourse Hello guys! I just wanted to point out a little typo: the guy who discovered Ceres was Giuseppe (not Giuseppi) Piazzi.
Btw, this series is awesome!
Greetings from Italy :)
What a great channel!
Phil, you are the best!!!!!!
I love the emphasis Phil puts on the B in "billions"
Nice way of putting Starfox ship in the asteroid belt part.
I am loving SO HARD on Crash Course: Astronomy!!!! Thank y'all for getting me, a lit nerd who spends her nights managing a restaurant and days reading all the books, excited about space. Cheers to sharing the knowledge. :)
I love it when I learn something new. Like with the five Lagrange points. I knew of the two close ones on the line between sun and earth, but I didn't know of the two at 60° to these line or the “distant” one on the “other side” of the sun. The term Lagrangian is known from mathematics to me, but as I suck at it, I never really understood it (and less so QM, at least from a mathematical point of view). Also, congratulations on your "own" asteroid, I imagine this must be something for an astronomer! You do a Great job in popularizing Astronomy with these videos!
I LIKE YOUR EPISODES PHIL PLAIT!!!!
Phil, you are awesome
Great channel
I just love the Astronomy Crash Course...!
I also bet that scott will be here in no more than an hour ...
Thomas PlaysTheGames I wouldn't take that bet if I were you.
“And it goes by the name 165347 Phil Plait. Must be a coincidence.”
Extraordinary humility!
Love how you have your own asteroid! Thats awesome as!!!!!
Awesome!
i like the ending music where yous how previous and next episode it's relaxing :)
I really enjoy the series or Ceres.
I think everyone that hosts crash course episodes john green,hank green,phil plait you name them they are all brilliant and everyone else on crash courseyou are all GREAT.
"... the universe is under no obligation to adhere to our expectations .. " nicely said !
Thank you for sharing Amy & Eleanor's asteroids.
165347Philplait for life!
Another great episode. Thanks for making these!
this is my favorite show on youtube