Can a Galaxy Die?

[IwantaBarqsrootbeer]

What if extraterrestriales (aliens) kill off the humans. Besides, nothing can travel faster then light. Even if we could travel faster than light, it would take 3-4 years to just get to Proxima Centauri. Life should only stay on whatever planet it was on to begin with. It would be like taking a species from Mars and putting it on Earth. Earth's life would die, but like on Mars would still be alive.

[iCelineTV]

X_X

I love the animations in these videos....

[SnowPawWolf]

Mr Bean? xD

[bluehardsteel]

But what about Dark energy won´t that kill everything in the end???

[lightsuit]

you watched national geographic didnt you yea space week...

[bluehardsteel]

yes but not much of it tho:( i just have watch about dark matter and dark energy on The history channel or program called the universe ;)

[septicbath]

Jack Parson's Laboratory

[Dargo099]

well,howe about conquering this galaxy's and turn them into food production centers!:P

[adrianedbe]

that reminds me of invader zim.

[ananiasacts]

Wouldn't hello kitty factories be more lucrative?

[CrissySnow]

hahah say what?!

[jaedcapo]

We wont colonize the galaxy! its justt too big and humanity its not eternal!

[MartialArtsfreestyle]

Humans will go all over the galaxy. Our strenght is to learn, a person is not eternal but they reproduce and teach and learn and advance a civilazation. Oneday we will travel the stars. Why do we humans always talk about our deaths and our us not succeding. is it becuase our life is not whole? Have faith

[TheDarkAnimators]

we would have to get close to the speed of light tho

[BCSpore]

I hope we will travel the stars in six billion years or we are all toast! Literally!

[shfbdfi1273]

Why should we care about anything beyond earth's orbit? Knowing about all these galaxy doesn't solve world hunger.

[stargen5]

Question: Since the middle bulbous section of any galaxy is so much brighter, does that mean if we live closer toward the center, everything would be so bright? Perhaps no day/nights?

[SpitzerJim]

I've never done the math, but I'd be surprised if the stars are close enough together to create a sense of daylight. Remember that even in our own solar system, by the time you get out near the outer planets, our Sun just looks like a bright star, and it's effectively always night.

[Angle1101]

you can see a video about what happens when sun dies

[wayne8001123]

You cannot call Solar System a Solar System.

[tommybrett]

this is a good question but i wonder can a black hole die?

[SpitzerJim]

The top minds in astrophysics have been debating that for some time. Right now the consensus is leaning toward "yes," because it seems they can slowly evaporate. But there's still a lot of research to be done!

[stagecoach2]

I have a question. If a galaxy lives for billions of years how can a human who's life is comparable to a gnat understand or answer such a question as , can a galaxy die? Why don't you just say you don't know?

[SpitzerJim]

For the same reason that you, someone who hasn't lived an entire human lifetime, can know the life cycle of a human. You can observe pregnant women, babies, children, adults, the elderly, and the dead, and connect the dots.

[demonknight66698]

That's an excellent answer! Yet so true. I wonder if it's possible for Stars to cease to exist. The amount of energy in the Universe will eventually run out no? I know that law about energy is never lost, it's just converted from one form to another but for stars to exist they need hydrogen.

[moobles]

Rather than looking at it as energy running out, I think it's more about equilibrium, where all matter has reached a state of stability (which apparently is iron). As I understand it energy flow from a high potential to a low potential, when an equilibrium exist, no energy flow so there appears to be no activity, a nothing.

[juha686]

Stars have a fusion reaction, and fusing the lighter gases to heavier gases, untill it may not sustain the fusion reaction anymore and die out, or get such large mass that it collapses, creating a black hole, or blowing up.

[pajamaninja367]

you guys should pick some more advanced questions

[Toonplayer08]

:D This vid clearly explains how galaxys die :)

[Ripzta13B]

How are stars created?

What starts the reaction?

[SpitzerJim]

We have another video on that topic called "How Do Stars Live and Die?"