ScienceCasts: Re-thinking an Alien World

[TimeTravelerTN]

So, can I use my earned flight hours credits to go there ?

Hope they serve flight dinners in route....

[mcplanetearth]

it would also be a tidally locked world that may have a ice cap on one side and scorching death on the other and somewhere in between there is a MY little pony like world with rainbows flying purple ponies and predators that mutilate them from time to time.

[kufpipa]

In Sweden you could wear a t-shirt in December last year. The year before that it was minus 10-20 degrees Celsius.

[Noughtilus]

I watched that whole thing to learn that? They should have started the video with that so I could have known not to bother watching.

[jtmedina75]

200 Billion stars in the Milky way galaxy * 1 Billion Galaxies = 2 × 10 to the power of 20

If we are alone then we are wasting our time here on earth and we should already be colonizing and terraforming other planets to spread our species because if something catastrophic happened here on Earth we would be destroying the only planet with life in the universe.

Think about it.

[narkbentley12214806]

Amazing

[PatSan1984]

how can they measure density from light observation? thanks

[PainSurgeon]

Amazing how they can measure stuff like this...

[pradyrocks100times]

Lack of technology

[Carsfan58]

How to evalue the time "they" needs ton come till our planet, from suches kind of distances ? Are they able to cross the "time-wall" ? If they arn't, how to explain there preasence on our world ? Do they reproduct them during centuries ? For me those considerations are also difficults as what's closing the theory of becoming (as ghosts or so on) ? As you let to understand, there are two ways : first, we assume that we arn't alone in the universe. Ok. But how do they are coming to us in that way?

[asthegreatabhi1]

never thought about extra terrestrial objects in space but now I will think on it .

[welcome8784]

Thanks NASA

[onefugowie]

oppss 2:46

[onefugowie]

explain at 2:54 a matter of years flashing buy in a matter of hours?????

[815MikeB]

@onefugowie What he means is that that planet only takes 15 of our hours to go completely around its sun. So it has very short years compared to us.

[onefugowie]

@815MikeB thank you

[RayWilliamJohnson26]

Hello Nasa i coudnt contact you via email so i am writing to you via youtube. I am 13 years old and when i came bake from school in london. i was taking photos of the sunset when i saw 2 objects 1 the sun and the other i am guessing is nibiru please reply and confirm this i am also posting a video response so please watch the video

[thebearisoverhere]

Well made, high quality videos!

[teenee4]

the Brain drain to Cern shows...........

[teenee4]

look @ Zeta 1 & Zeta 2 Reticul.

[mattysimsoficial]

Sounds like Tom on text to speech;)

[mattysimsoficial]

Find a better narrator or are scientists at NASA used to this mono toned style?

[oneblueorange]

So fuckin patronising

[notzify]

i hope im alive for the day when nasa finds extraterrestrial life

[orchestralbunny]

@notzify Maybe they already found one or more but are keeping it from us... 

[JBiswoman]

I hate everytime when someone using fahrenheit...youtube is for the world...fucking selfish racist idiot americans

[illustriouschin]

@JBiswoman We respect your measurements, why do you not respect ours?

[vortical911]

@JBiswoman NASA is an American agency. The fact that this video is available to the world is merely a luxury.

[leeus20007]

@JBiswoman what a twat you are lol

[Ricky7ACM]

wow it looks really epic

[0zzy07]

that planet is infested by zerg! its a trap!!!

[HDApollo]

What is Fahrenheit? It would be nice, if you were using SI-Units only, so everbody worldwide could better understand your Videos.

[THE16THPHANTOM]

wow new year every 18 hours. I Would Be Immortal On That World.

[SayBinidus]

Good video. Bit more music and a bit less cheesy would not hurt though.

[danjoelabrenica]

tryndamere has also super critical damage :D

[blocklandman0815]

keiper 22b is still better

[alej91]

We keep looking for earth like planets, and we might not find one soon, we keep thinking that we'll find planets with similar forms of life as the ones we have here, but we might be wrong, what if there is life in planets without water, in worlds where the surface reaches + 2000 C?

[1Omega5]

@alej91 Seriously! Even on on Earth we have organisms that can survive in extreme heat and extreme cold. So, why the hell do they immediately assume that if an exoplanet is too hot or too cold compared to Earth, then it must be lifeless?

[Zheige]

gliese 581 C still better..

[ElComoDuele]

a Fiat Punto and a Ferrari have 4 wheels, windows, doors, engine, use liquid fuel and both are different cars

[ElComoDuele]

duh! Captain Obvious is working for NASA!

[KittenHorror]

I'm such a nerd when it comes too science.. :P

[TheMACcar]

I'm still tring to figure out how a vacuum on top of a wing makes the plane fly. I still think the compression under the wing lifts the plane.

[903harman]

they don't count the fact that if a planet has a super high magnetic field it might be possible for life and water to exist being so close to it.

[GegoXaren]

"[...]26 times closer the the parent star then mercury[...]"

"[...]26 times closer[...]"

Am I the only one that twitch when ever some one says some thing like that?

say the distance is 100 m, what is 26 TIMES less of that?

It makes no sense..

is it: 100 x 26/100 or what?

Why not just say one twenty-sixth of the distance?

[ananiasacts]

@GegoXaren, it doesn't bother me at all. "26 times closer that" seem clearer and easier to understand than "one twenty sixth as far as." But I do wonder why they didn't just say "it's only a little over a million miles from it's sun whereas mercury is over 28 million miles from our sun."

[MrLegoMan88]

haha i love the little "star's apparent brightness" chart.

[ultracodeua]

майя были правы!!!!!

[GlowWorm1962]

"Just because a planet is the same size as Earth, doesn't mean it's like the Earth..."

Well, duh!

[mustang6172]

@GlowWorm1962 I maintain that Venus is a tropical paradise!

[labobo]

@GlowWorm1962 Quite often i do wonder how stupid these scientists really are and how they managed to get the job in the first place.....scary and disappointed. they should know better then to make an assumption and have it guide them blindly like this.

[ateiviz]

@GlowWorm1962 that's what i thought haha it don't take a scientist to figure that one out hehe

[DigitalHemorrhoids]

@GlowWorm1962 strange as it may sound most people dont even concider these things, these facts are aimed at those people, not those of us with the capacity to work it out for ourselves, if this is of a low level of learning to you, maybe you should seek a better source for your information than a youtube channel.

[GlowWorm1962]

@DigitalHemorrhoids Point taken, but this ain't the Discovery Channel, it's NASA and I expected more from them.

Dammit - I *want* to see videos that I don't fully understand first time around... that challenge me and make me want to find out more.

I'm fed up with being patronised by video and program makers, who assume that the public are too stupid to understand any information that isn't dumbed down to pre-school level and spoon-fed in bite-sized portions.

Grrrr...

[DigitalHemorrhoids]

@GlowWorm1962 yep i kinda agree with you, nasa should do 2 channels, this one and nasa"elite" or something, i suggest new scientist ...

[DigitalHemorrhoids]

@DigitalHemorrhoids also i believe a lot of these wackier space conspiracies are largely to do with the lack of availability when it comes to the correct information.

[Halflifefan54]

@GlowWorm1962 You have to realize NASA's content is focuses on reaching out to the laymen, not always people who know a thing or two about astronomy, like us :)

[ultracodeua]

ахуеть опомнились !

2012

[Fly2Azeroth]

"55 Cancri e" is not a super-Earth it's a super-Venus ;)

[Alpha6059]

Great discovery!

[FIGHTFANNERD3]

i already know about this nasa

[wii2050]

I'd rename this planet to Sup' Dog.

[fcycles]

I would have change some of the '55 Cancri e' in the narrator text to 'this planet'.

[qabandiman]

so if its 7 times bigger that means gravity is higher there, right?

[sander217]

@qabandiman yes

[qabandiman]

@sander217 soo if there were creatures, they would look ALOT different than we do, they will probably be more muscular to be able to move around, can primitive life even flourish in a higher gravitational pull ?

[sander217]

@qabandiman they would be shorter then humans and stronger

[FIGHTFANNERD3]

@qabandiman you got it

[TheDuckaDiesel]

@qabandiman Probably but not nececarily. Gravity depends on the mass of the planet. So a "soft" planet would have lower gravity than the rock planet of the same size.

[qabandiman]

i iz smarts cuz i watchz NASA on the youtubes (:

[pyrea17]

lol

[MrDavomc97]

first

[pyrea17]

just kidding



[pyrea17]

herp derp