The Smallest Star in the Universe

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SciShow Space takes you to the smallest star in the universe, and explains how astronomers figured out that’s what it was!
Hosted By: Phil Plait
Bad Astronomy: www.slate.com/blogs/bad_astron...
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Sources:
arxiv.org/pdf/1312.1736v1.pdf

Опубликовано:

1 сен 2014

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Комментарии : 1,3 тыс.

@EpicDyster 9 лет назад

"Hot young massive brown dwarf"

@alyosha119 9 лет назад

lol

@hYpYz 8 лет назад

+BattleCat hahahhhahhaha

@mr.minnesoulja1257 8 лет назад

😂😂😂

@giorgigelashvili9629 8 лет назад

"Massive" "Dwarf" wut

@MrPeterGoldman 8 лет назад

Mass doesn't dictate size. If you compress the sun into the size of a peanut, it would still be much more massive than the Earth.

@badastronomy 10 лет назад

Thanks for all the comments, folks! I was replying to some, then realized they go on and on and on. :) It was really fun working with Hank and the crew there, and I had a great time.

@tristanmatthews9509 10 лет назад

Great show. Minor nit-picky comment. As I'm sure you know, you need the luminosity and spectral type to place a star on main sequence and get an assumed mass. With only one you might be looking at a red giant or brown dwarf (as in the video) that isn't primarily powered by fusion hydrogen into helium. The point here is that "Red Giants" are cooler then many main sequence stars but burning their fuel much faster so much more luminous, contradicting what you said in the video. I'm sure your trying to keep it simple, I've just market that test question wrong enough over the years that the distinction bugs me.

@badastronomy 10 лет назад

Tristan Matthews That's true... but in this case, they examined nearby stars which had known parallaxes, so the luminosities were known. :) I wrote about this star and how this was done when it was announced: when www.slate.com/blogs/bad_astronomy/2014/06/11/the_brown_dwarf_limit_astronomers_have_found_the_smallest_star_known.html

@tristanmatthews9509 10 лет назад

***** The parallaxes lets you calculate the luminosity off of the apparent brightness of the star, so it makes life really easy, but you need to measure both the luminosity and the spectral type to place it on the main sequence. The video asserts something like "The higher its surface temperature is, the more mass it has, because more massive stars....", with a nice little "Hotter = More massive", while this is true for main sequence stars its not true in general. Basically you need L and C (x and y coordinate) to place it on the HR diagram you can't do it with only one.

@tristanmatthews9509 10 лет назад

Tristan Matthews Hmm I keep re-reading this and I feel like it comes across as though I'm trying to pick a fight, and I'm really not. Just making the point that Betelgeuse is Red (its surface is much cooler then the sun.), but much more massive.

@Dreadshadow89 10 лет назад

Really cool that you came to Sci Show. I love your book, it got me alot more interesested in astronomy! Greetings from Sweden! :-)

@TishieMcTashie 8 лет назад

I like this guy. He doesn't speak like his words are in a rush to escape from his mouth. Much more relaxed. Hope you're back soon!!

@Monochromicornicopia 8 лет назад

+Tasha Marie Some people think much faster than they can speak, and if they don't get it out fast, they lose their train of thought.

@TishieMcTashie 8 лет назад

Monochromicornicopia I get that, but in this case they're mostly going from scripts so I feel like they should relax a bit instead of zooming everything out as fast as they can... But hey, I'm probably the only one who cares lol; maybe I'm just too slow!!

@joshuaosei5628 8 лет назад

+Monochromicornicopia That's kinda like me... It gets kinda annoying but I don't do it near spas often as other people.

@abidaberdoo 8 лет назад

Ikr i can actually take in the information

@philipjohnhervias659 7 лет назад

Tasha Marie

@steve1978ger 8 лет назад

It likes to think of itself as "the coolest star in the universe".

@funnehmahnoldaccount463 8 лет назад

Baa-Dumm-Tss!

@jor2423 8 лет назад

@Funnehmahn Oh god i choked laughing lol

@andrewdemetrius9957 7 лет назад

The coolest star in the Universe should be named Elvis Presley..... ;-)

@S4M4R1T4N 8 лет назад

Show a size comparison next time. People love size comparisons.

@random_estonian5356 8 лет назад

*Insert lennyface here*

@joechip1232 7 лет назад

If it's not compared to a number of football fields or olympic-sized swimming pools, I can't understand it.

@Citiesinmotionplayer 7 лет назад

He said it could fit inside Jupiter. Just think of something a little smaller than Jupiter.

@danielalexandre89 7 лет назад

Are we still talking about stars here? Cause it seems this as taken a Hole new dErection

@Nemoticon 7 лет назад

It won't fit on your screen.

@Batman-nr4en 4 года назад

KIDS: Twinkle twinkle little star uy scuti: am i a joke to you

@-loarado 3 года назад

I thought Sirus B was the smallest star, almost as big as earth

@notbhatnagar 7 лет назад

2:47 This guy's wife : "Honey can I have some lukewarm coffee please?" After drinking lukewarm coffee : " Honey what did you give me? I've got a hole in my mouth."

@blacksaphire7773 7 лет назад

I was watching, and enjoying learning about star classification... and then suddenly it dawned on me... Who stole his eyebrows? D:

@simondann7371 7 лет назад

BlackSaphire777 can't unsee

@InfiniteRhombus 7 лет назад

same person that stole whoopi goldbergs

@steves2711 7 лет назад

😱sheesh

@xavierrodriguez2463 7 лет назад

An explosive

@decus9544 7 лет назад

They're there, they're just the smallest eyebrows in the Universe, that's all.

@joeylehman9649 10 лет назад

my mother told me i was a star though

@Yetoob8lWuxUQnpAahSqEpYkyZ 10 лет назад

She's wrong.

@carlacastrodasilvasantana6960 2 года назад

If you threw yourself on the sun you could be technically be a star since you could be a part of the sun

@cralixthegameking4408 2 года назад

We are star corpses

@010dx010 8 лет назад

"Only 42 light years away"

@jaredsalads5862 8 лет назад

42 trillion miles away

@lordgarion514 8 лет назад

+Jared Salads no. A light year is around 5.8 trillion miles. so 42 light years is around 240-250 trillion miles.

@h.k.likerobot3704 8 лет назад

if you have something extraordinary

@kadenzplayz4399 8 лет назад

Well while you are correct that it is impossible to travel light speed what we could do is in the future we could possibly set up a wormholes after the first mission and what would happen is eventually we would set up a wormhole and we would be able to somehow get there in seconds.because... Wormholes politely tell logic to fuck off.

@Simonsavvi 8 лет назад

Have you seen Stargate? The series? why am I even explaining you have of course seen stargate. :P

@HathamRahman 10 лет назад

I like Phil Plait, he has a soothing and reassuring voice, perfect for explaining science :)

@TheBetterGame 10 лет назад

Hear Phil Plait say "relatively soon" just bugs me. He, of all people, knows that he could delay the project for a million years, and still justify the term "relatively soon".

@badastronomy 10 лет назад

I *wish* it were just a million. Cost overruns and such mean it's more like a billion years or more. Dang bureaucracy.

@WobblesandBean 10 лет назад

***** Yeah. Our priorities are kind of horrible, aren't they? When India starts spending more money on space exploration than we do, it's time to go back to the drawing board. And don't get me started on John Whitmire and Spacex...

@draconianking 10 лет назад

Amelia Bee Heeeeeeey do you post on Cracked?

@WobblesandBean 10 лет назад

Michael Spencer All the time. XD

@draconianking 10 лет назад

Thought so. I recognize your mug. I'm DraconianKing on there.

@AlltimeNumbers 10 лет назад

Fantastic video and very well presented Phil. Good job.

@wilfredobigol5261 7 лет назад

Person: how much mass does it have? Me: 2mass

@MrVankog 10 лет назад

Actually, to me this was the most interesting video of this channel. I totally like the way he explains things.

@MrNicoJac 10 лет назад

Have this guy do more videos. He's cool. Very clear and not over-enthusiastic nor boring.

@afrojoe5585 10 лет назад

I really like this guy. He speaks slowly, clearly, and comprehensively. I'd like to see more of him :) Very interesting episode

@SBroproductions 10 лет назад

Maybe I'm retarded but when he mentioned a "secret project" I literally for a second thought they were building the smallest star in the universe. I then remembered that Hank Green isn't God.

@TVCColin 10 лет назад

Who's god? And what does he have to do with small stars?

@jojo300001 10 лет назад

Fugger Right In Da Puntang I'm assuming they were saying it would take "god" to just willy nilly decide to make a star.

@Ravenclaw1991 10 лет назад

You probably shouldn't say 'retarded.' People take offense to that. 'Ignorant' is probably a better word.

@imortalizer50k 10 лет назад

+Fugger Right In Da Putang It depends on your or others belief what God is but the common consensus among most Religions is that God is the unseen undetectable being that created the universe and its law of physics and everything else. So what he was saying was that while God himself can cause stars to form, Hank Greene who is as Human as the rest of us cannot and thus why he's original Hypothesis of the "Secret Project" was incorrect,

@TheErlias 10 лет назад

Ravenclaw1991 You shouldn't use the word "ignorant". We prefere the term "people with limited knowledge". Just saying, becaue you don't want to be offensive, won't you?

@EcceJack 10 лет назад

This was awesome! Thanks for sharing it with us. I'm always extremely pleased when popular science shows (such as this one) are able to both explain complex topics to the interested public, but still offer new information even to the people who already know something about the topic

@bladeskiosity5689 10 лет назад

Phil Plait!! Nice work SciShow, it's awesome that you bring in guest hosts from around the sciences! Keep up the good work and getting these awesome people involved.

@TheReligiousAtheists 7 лет назад

If you're looking for the smallest star in terms of volume and size, it'll probably be a neutron star, 'cause those things are like only 10s of kilometers in diameter.

@SPACETVnet 7 лет назад

Thats what I was thinking.

@parasharjjjayant 7 лет назад

In their prime time, they were the largest stars. And neutron star is not a "star,", it is an after star.

@EuricoRoberto 7 лет назад

They are stars.

@that1valentian769 7 лет назад

Yes, but they have more MASS. They are just dense. This star is not very dense AND small, so it becomes the smallest. Also, I don't really consider them stars as they aren't fusing any elements, they are a stellar remnant.

@SPACETVnet 7 лет назад

Mass and size are not the same. Isn't that obvious?

@jckgoldness 10 лет назад

I love this guy, hes awesome

@MrRoboskippy 10 лет назад

Great video Phil, thanks. It's really cool seeing you here on this channel.

@eyaabid5092 7 лет назад

I'm literally in love with all the channels of SciShow ❤ Guys continue doing what you do

@alpharaptor6 10 лет назад

why are people complaining about the hosts? pay attention to the information instead of the hosts, did you expect morgan freeman?

@WobblesandBean 10 лет назад

I don't even know why anyone would complain about Phil Plait, he's kind of a celebrity in his field. I'm amazed they even got him to host this at all.

@kmaglion 10 лет назад

The hosts matter. I can get information anywhere, but I prefer to get it where I like how it's presented. However, the hosts are awesome, so I keep watching. And then frowning at the comments where people persist in making asses of themselves attacking the hosts they don't like rather than just going elsewhere.

@sirgreggorygroda 10 лет назад

Even thou I don't complain about the host I must say that I would love a sci-show episode hosted by Morgan Freeman. Or even better, Gordon Freeman!

@ExistentialNathan 4 года назад

Neo-Rex well, when the host talks so fast, looks like they’re about to eat the crew members, crawl through my screen and eat me, gives me nightmares, and makes my infant cry, then yeah, there’s some complaining to be done. Now I have to check who the host is before watching and if it’s some juicy topic, I have to find another way to learn about it. (Not this special guest host)

@Robot_Overlord 10 лет назад

Love ya phil

@badastronomy 10 лет назад

Dawwww. Thanks!

@MarcSiegert 10 лет назад

Best SciShow Space Episode so far! Very well explained!

@MunkeyChips 9 лет назад

SciShow Space Phil Plait! I love your Bad Astronomy book. I read it a few years back. It was instrumental in igniting my love of astronomy! Thanks!

@Pyrple 7 лет назад

I was told in 3rd grade when they taught us the sun was a medium sized star that "There are some stars that make the sun look like dust and there are some stars that could fit on the tip of your pencil" Shame, that'd be cool if we could have stars in our houses.

@advocateforaimassist8217 7 лет назад

PurpleCircleMan lol how old are u

@Pyrple 7 лет назад

@Mernom 7 лет назад

Whoever told you the last bit lied. Unless they consider black holes to be stars.

@delusionnnnn 10 лет назад

I've read Phil since he was a customer of a regional ISP I worked for in ~1998 or so. Standup guy then and now.

@badastronomy 10 лет назад

Holy cow. Which one? It's been too long, I'm blanking on the name. In Maryland, right?

@delusionnnnn 10 лет назад

***** Yep, Smart.net, long since purchased by a cable or DSL firm and subsequently absorbed, I think you were badastro.com then?

@badastronomy 10 лет назад

delusionnnnn Smart.net, right! I loved you guys. You answered the phone, and actually helped! Oh, the good old days on teh tubez. Yeah, it was badastronomy.com, which still exists, though I haven't updated the format since like 1999. Someday I'll take care of that. #suuuuuure

@BeCurieUs 10 лет назад

***** Was that back when the internet had sound! Kids don't believe me when I told them the internet used to talk to us...

@MrSpazDoctor 10 лет назад

I like this guy. I actually got the information pretty well, and hope he returns. Plus that collared shirt is rockin

@ConnorHay 10 лет назад

Finally! I've been waiting for this ever since i saw Michael Aranda's "What I'm Doing Right Now" video! I love guest hosts, especially when they're people I'm already familiar with.

@LordMarcus 10 лет назад

So, is Jupiter a failed star?

@KingBrooklynman 10 лет назад

Sort of. Technically earth could be considered a failed star, too. To be a star you need to have enough mass that you've pulled in to create fusion. The sun managed to do so, but didn't take in everything around it, obviously. What was left was able to find a stable orbit and clear its neighbourhood (for the most part) and become the planets. Jupiter has a fair amount of mass, but isn't massive enough to have been able to create fusion or really get that close. The earth even less so.

@LordMarcus 10 лет назад

Ben Putnam So, this new star, though smaller than Jupiter, has more mass than Jupiter, enough to (probably, anyway, as noted in the video) undergo sustained fusion?

@StormwaterIsOneWord 10 лет назад

Lord Marcus Yes.

@KingBrooklynman 10 лет назад

Yeah, but just barely. It's the "smallest star" as it's at the lowest threshold for having enough mass to sustain ongoing fusion. At least ongoing enough that we can still see it, though it is only 42 light years away. There very well may be other *slightly* smaller stars that are farther away, but they either burned out before we got to see them, or they're too dim for us to see currently.

@cpob2013 10 лет назад

Its just waiting for the Monolith

@MakoRuu 9 лет назад

I don't like the way this guy wiggles when he speaks.I feel like he's trying to pick me up in a seedy tavern under an apartment building.

@tengkualiff 9 лет назад

MakoRuu haha xD

@MaryLeighLear 8 лет назад

+MakoRuu if you listen closely, you can hear the noises of his dry mouth. *slop slop*

@mandydax 10 лет назад

Yay, *****! I hope you collaborate with Sci Show more often. It's so exciting that you and Hank are working on a project together.

@krim7 10 лет назад

This was an amazing, well explained, well presented show. 10/10!

@123rikin 10 лет назад

HOLY CRAP, THE GUY FROM BAD UNIVERSE!

@badastronomy 10 лет назад

WHERE?

@123rikin 10 лет назад

***** LOL he's the host.

@ghuegel 10 лет назад

123rikin You didn't seem to realize that you were telling the host of the video who the host of the video was. Phil Plait, aka TheBadAstroner, aka the guy from Bad Astronomy, aka the host of this video, replied to your post and you didn't seem to realize it.

@lastrequiem9245 10 лет назад

***** subbed! yay Science! hooray for more Science videos for me to watch.

@123rikin 10 лет назад

ghuegel OMG You're right, I'm so sorry.

@HamzaSayedAli 10 лет назад

He reminds me of Bill Nye...

@TeaBurn 10 лет назад

Only much more boring.

@julia__huggie2405 10 лет назад

+QTHERESSERECTION you have the best username!

@HamzaSayedAli 10 лет назад

Rawrimadinosaur :D

@syedmonzareen5002 10 лет назад

"Why are you wearing a fox hat?" "BECAUSE NO ONE CAN CATCH THE FUCKING FOX.

@ericengland5158 5 лет назад

Cancerous?

@Firazoid 9 лет назад

OMG it's Phil! I love Phil's videos and website. Please have him make more videos with you guys, that would be awesome.

@PrestonSmithsMusic 10 лет назад

Glad to see this guy do the show today. Love his show.

@aperson22222 8 лет назад

They should come up with a catchier name for it. There must be some myth somewhere in human history with a notoriously small character.

@aperson22222 8 лет назад

Tommy WizOh Hmm, interesting. Would we have to wait for GoT to pass into the public domain though?

@TIMEtoRIDE900 7 лет назад

Tinkerbell ??

@Shiria137 10 лет назад

Hi Phil :D

@badastronomy 10 лет назад

Hi Victor.

@Shiria137 9 лет назад

:D Wow never thought I'd get a reply from you! I love your blog

@andrewsanger9353 10 лет назад

REALLY good host. Speaks so well, keep bringing this guy back!

@trae5599 10 лет назад

Everybody they have on here is really good and explaining these things!!

@chimkinNuggz 10 лет назад

The smallest star in the universe is a star fish.. these guys didnt study up before this video

@WolffeKid 10 лет назад

This wanker obviously didn't finish highschool.

@FPSGameClips 10 лет назад

RuggedALAN That was great :D

@PupitoManuel 10 лет назад

Hahahahaha!!!... Wait, what?

@SuperZarrabal 8 лет назад

So, the Sun is bigger than 90% of all stars?

@matthewisasian5702 8 лет назад

+2000gmod Red dwarf stars are the biggest despite the name

@julien8629 10 лет назад

Awesome guest. Awesome video. Awesome channel. Awesome science! Keep it up SciShow!

@Fr0zenLegend 10 лет назад

Yay Phil!!!! I hope you become a regular here on SciShow Space! Read both your books btw, is there a third coming soon?

@DJaquithFL 7 лет назад

If that 'smallest star' can fit inside Jupiter then what kept Jupiter from becoming a star or even a brown dwarf?

@traeumerich 7 лет назад

Say say that the smallest star is more massive than Jupiter, that means it has more heavy elements in it. For fusion to happen at considarable amounts it needs high temperature and density. The threshold is about 5% of the suns mass, and Jupiter has only about 0.1%.

@DJaquithFL 7 лет назад

traeumerich I agree, but what I heard or at least thought I heard is the video stating _"The smallest sun could fit inside of Jupiter..."_ which is why I posted a confused comment. :-)

@traeumerich 7 лет назад

massive in english means volume? I didn't know, I meant that the star would fit into jupiter and non the less has more mass, it is more dense.

@Jose20571996 7 лет назад

Massive means not necessarily volume, rather density within that volume. So white dwarf stars are very massive because one teaspoon of their matter and you will have something that weighs several tons.

@jutau 7 лет назад

Stars don't fuse heavy elements. They are usually hydrogen fusion, the lightest elements.

@salo283 10 лет назад

When is Caitlin coming back? :(

@vrog 10 лет назад

She is a horrible host

@Nokus416 10 лет назад

Vaughn Rogers For a second, I read "She is horrible toast" and got really confused.

@salo283 10 лет назад

she's the best, i don't know why you hate her so much

@Nokus416 10 лет назад

What salo283 said, by the way. I think they're all fantastic in their own, unique and interesting way. Each brings a fresh take on a subject that you might not have gotten from just Hank alone.

@Cross31415 10 лет назад

I really enjoyed this one, even if the subject is comparatively tame. Thanks to Phil for the good hosting!

@isis5888 10 лет назад

I love this channel so much.

@AlgaeEater09 10 лет назад

Is jupiter considered a Failed star then?

@vrog 10 лет назад

No not at all, where did you get that idea?

@derekmaynard1767 10 лет назад

***** There is A LOT more to it then that. Jupiter is defiantly not any form of star. When they said that the star could fit inside Jupiter they were only comparing the sizes to give us an idea.

@Melthornal 10 лет назад

Jupiter has a mass that is 0.0954265748% of the sun. The star they found has a radius smaller than Jupiter, but a mass that is 6-8% of the sun. Meaning it is 100 times as massive with a smaller radius when compared to Jupiter.

@Mythrilspade 10 лет назад

We also have the matter of surface temperature to contend with. Jupiter has a surface temp of negative 145 degrees celcius according to NASA

@AlgaeEater09 10 лет назад

Scott Steiner Just like most failed stars do :P. Your point?

@NexusSpacey 8 лет назад

Neutron star... Just fucking say it

@brandonhughes645 8 лет назад

+Spacey games lol down to 20km wide

@alexpaysen4478 8 лет назад

+ryan foot not stars. Stellar remnants

@tree453 10 лет назад

Love this host, charismatic and makes himself understood. Would like for him to teach me more

@douglabe 10 лет назад

It doesn't really matter to me which presenter is doing the videos, but this guy is by far the best so far! :D

@MrRizeAG 10 лет назад

Is there any good reason why this channel exists? That is, separately from the main SciShow channel. I really tried to get used to the new hosts, but they just don't work for me. It's obvious they were only chosen for convenience and not ability. And this guy somehow managed to make an incredibly interesting discovery sound incredibly boring. But my whining aside, what IS the reason this channel exists? I can't think of a single reason why you would split SciShow in half by "Space" and "Not space". It obviously wasn't to showcase host talent. Was it to increase production output? Not very plausible considering how much Hank cares about quality over quantity. And yet here it is. Effective science communication is all about the communicator, not the science. The science is available anywhere. Sacrificing that effective communicator component, you're left with bland hosts giving you blandly presented information. And it's not just that I want Hank to do everything. I don't. He's not the only (or even the best) educational communicator on RU-vid. That award likely goes to Emily Graslie. But whatever. I'm ranting. I'm going to get flamed by feminazis for even *vaguely implying* that Caitlin Hoffmeister is anything but a goddess anyways, so whatever.

@unvergebeneid 10 лет назад

You know nothing, Jon Snow.

@Crystalvampire66 10 лет назад

I believe that they created this channel because there is a lot of space related science news and stuff going on and they wanted to be able to focus on it more. Also the reason that there are a lot of comments defending and praising Caitlin is because that in her first few videos there were a lot of negative comments saying that she shouldn't host because her appearance didn't conform to the standards of a few random youtube commenters.

@kaiajallai5167 10 лет назад

And why should there not be a separate channel for space? There are tons of things to talk about regarding space. Not that other things they cover don't have tons to talk about, but they themselves obviously are interested in it. So why not? I for example really enjoy a separate channel where they can center only around space as I am a fan of this particular topic. But that aside, I think I remember form somewhere that the reason was that there was a lot of space-talk on the main show and a lot of viewer wanted to hear more about space. So you put 1 and 1 together and get this new channel. Regarding the hosts it depends on the person I guess. I like them and I also get the interesting information. And why should you be attacked? Most of these so called "feminazis" you refer to are here because of the way people talk about Caitlin (mainly about her looks). Also... the guy in this video is a guest host. He is an astronomer and writer/blogger. en.wikipedia.org/wiki/Phil_Plait I like him also. And if you read peoples comments, they do too.

@WobblesandBean 10 лет назад

Uhh...I'm a pretty big feminist and I don't even know who Caitlin Hoffmeister is. I don't even know why you brought feminism into the discussion in the first place. We're talking about a space science channel.

@ImplodingChicken 10 лет назад

If my memory is correct (which is a big if) this channel started a couple months after the failed attempt to fund SciShow through Subbable, and right around when they started putting ads in. I don't think Hank wanted SciShow Space - I think it was required by his sponsors to increase viewership. The attitude of Hank towards the new male host (can't remember his name) further hints that he is not pleased with this channel. But that's just a theory. ... A game theory!

@Novaverse 10 лет назад

Dum sighentest. Duh bibel say Gawd sed let dere b lite. King me atheist sinner

@Ravenclaw1991 10 лет назад

Your stupidity is astounding.

@84ND3R5N4TCH 10 лет назад

Vaughn Rogers You seriously couldn't tell he was joking? And you think *he's* the idiot?

@84ND3R5N4TCH 10 лет назад

Vaughn Rogers -

@lisazoria2709 10 лет назад

Hahaha XD

@maribakumon 10 лет назад

That's actually very close to what I see on the internet from people who legitimately believe that. I have to congratulate you on your amazing success at emulating to behavior of people on the internet.

@alisea1911 10 лет назад

I like this host. He wasn't quite as animated, but he talked a lot slower and more clearly, so I was able to follow the explanation a lot better than usual. Good job :)

@ZetaFuzzMachine 9 лет назад

Hey, Phill Plait! Watching you on scishow while watching you on discovery channel as well, talking about black holes!

@GhaziSarhan 8 лет назад

Phil on SciShow Space, wonderful

@HavoJavo 10 лет назад

Well this was a pleasant surprise :) Lets see more of you Phil :)

@idonknowhoami 10 лет назад

this blew my mind!! space is so friggen cool!

@Jammius8 6 лет назад

Love this guy on how the universe works.

@crimsonorbital 10 лет назад

You were really good Phil! I really hope you come one the show again and I can't wait to see the "secret project" with Hank.

@Leb.ertarian 10 лет назад

I really like this guy, I hope he hosts more.

@uceid 10 лет назад

WOW!!! Phil Plait, I love this guy! Please invite more people from the astronomer community!

@fmontpetit 10 лет назад

Glad to see you here, Mr Plait!

@Palachrist 8 лет назад

i recently picked up Skeptics Guide to the Universe and started from the beginning. I heard you in the first 50 Podcasts :D

@stillshotprod 10 лет назад

I really enjoyed this host. Good job, sir.

@realspacemodels 10 лет назад

A project with Hank and Phil?! That's all kinds of awesome!

@melissaswain2994 4 года назад

This video was very helpful with school . Thanks

@KiddsockTV 10 лет назад

OMG how awesome is it to get actual Astronomers! You Rock Phil! You are the Real Dr Phil. lol

@FuriousImp 9 лет назад

Well written and his diction is great.

@JoelLeBlanc 10 лет назад

Phil Plait is awesome - just heard him as a guest on an SGU podcast.

@communistpastry2370 10 лет назад

I love this guy he's been in so many science documentaries

@AlphaBetaParkingLot 10 лет назад

Excellent. I'd like to just Phil my Plait with more videos like this.

@martinbondesson 9 лет назад

Yay, Phil Plait! :D

@Crystalvampire66 10 лет назад

I miss Bad Universe. Please bring it back Phil, I only ever got to see like 5 episodes of it. Don't know why but they ran the same ones all the time.

@10431818 10 лет назад

Phil Plait on SciShow? My inner nerd is so happy right now.

@samuelbaxter8416 10 лет назад

This guy is a brilliant Science presenter. Learnt more than the others, except form Hank of course :)

@stabulouskoda834 8 лет назад

gotta love hearing we think and maybe when talking about science

@PinkChucky15 10 лет назад

Awesome video! :-)

@iMrRollback007 10 лет назад

More Phil Plait please!

@MrPoffersher 10 лет назад

More Phil!!!

@OttawaOldFart 10 лет назад

I love the "it's only 40 light years away" relatively speaking it's close but it might as well be on the other side of the universe for us to get closer. Time to get a bigger Hubble up there

@pcgamerpro7642 9 лет назад

Love this guy! :)

@eg619rip 10 лет назад

I like this speaker....keep making vids for Scishow please

@ehtnicallyambiguouschuck6835 10 лет назад

Phil is the most amazing astronomer of our times.

@unematrix 10 лет назад

love this guy

@OmegaRainbow 10 лет назад

loved that last _"maybe"_ ;)

@daviddavis508 10 лет назад

Phil Plait doing a guest spot on SciShow? It's nice when I see people I follow independently cross over.

@gilzineto 10 лет назад

This guy could be a regular host, hes awesome!

@aperson22222 8 лет назад

His secret project with Hank was wonderful.

@719Burton 10 лет назад

This guy is awesome!

@superspartan112 8 лет назад

My man, Phil Plait! I was a bit sad that CC Astronomy was finished, but it was a great surprise to see that the Green brothers still hold you dear in their hearts, just as we do. Hope to see your awesome, secret (Death Star like, I'm assuming) plans soon!

@wooloosus6866 8 лет назад

Unfortunately, this was before CC Astronomy, so that was probably the secret plan he was talking about :( But here's to hoping there's still a death star in the making!

@MyfishBlog101 10 лет назад

Nice speech Phil had 👍

@cortster12 10 лет назад

You are a really good host!

@Screamingtut 10 лет назад

really cool!

@seanrea550 10 лет назад

I think an important notation for this episode is size not in physical demotions like radius, but mass or how much it contains inside of it. you can theoretically have two stars of the same mass that have different densities and they will have a different radius.