NASA Science Live: Black Hole 101

How do we study black holes if we can’t even see them? Could a black hole “eat” an entire galaxy? What would happen if you fell into a black hole? Join experts on #NASAScience Live as we take a journey to explore these mysterious objects that can be found all over the universe.

[minecraftm]

Want to become and astrophysicist someday--Black holes are really interesting!

[adamswan]

How small is the tiny point of mass and how does a black hole “die” or stop and theoretically if the black hole pulls light into it what happens to the light? What is the largest black hole? If it was fed infinite matter when would it stop?

[Pejuangdadangaming]

Pembahasan tentang black hole 101 bagaimana dengan black hole ton618

[sammratmaitra]

it is said that space time ends at the end of a black hole, is it true?

[minecraftm]

@Aurélie Shp Saw your question in the live chat replay. (Can we see behind a black hole ? If yes, how ?") Please correct me if I'm wrong-but I'm pretty sure it's not a "flat" object, more of a sphere. Essentially, I don't know what you mean by behind, but there's space all around the black hole.

[ayushichaudhari]

What actually happens near the black hole that the time slows down .??

[vishaltiwari]

One of the scientists stated that when a star is out of fuels and dies it forms a black hole, so does that point towards a great possibility of our sun turning to a black hole after a few hundred years? So, the sun which is a essential requirement of life on earth might become the cause of its demise. And is there any possible solution to avoid this, coz shifting to another solar system doesn't seem to be an option.

P.S. i am not a science grad just a curious kid, please ignore if ideas might seem silly

[cashkaval]

Wow, I had no idea Raj Koothrappali was one of the guests!

[HarshRaj-uqbk]

What if a star in one of the outer spiral arms of our galaxy becomes a black hole?

[nothingnessp]

How come you can't see the light inside black holes??

[dazobee]

If the sun is compressed into a black hole would we be sucked in or would there just be more or less gravity and life would live on? And if we lived on would we die from no heat and being cold or would we die from the radiation?

[amitnavale]

I think Black Holes are the essential for maintaining the galaxy fabrics.
They hold it together
Because of gravity they have they make sure gaseous mass matters etc to come together. Then they fuse together.
Generate heat then it becomes a planet or star.

I think dark matter has some amount of gravity. Which over billions of years that matter come together.
Creat a massive gravitational pool. Then they became black hole.

[kavyadev]

What causes the shadow of the black hole to form
Where does that much light come from?
Doesn't it get absorbed by the black hole?

[nutier]

amazing video ! I learn to know the universe from you by this way . I think that, the black hole is not a hole, it has the black magnetic matters that the daylight cannot bright through out it .

[youtooyoutoo]

Doesn't time stand still at (or near) the SR? Doesn't that mean that nothing at the current SR has had 'normal time' to fall any closer to the center of the BH. But everything that gets that close adds to the gravity well(field) of the BH, increasing the SR out past the stuff that (in our observational normal space-time) is stuck between previous and currently accumulating layers.
I assume that like the net microgravity at the center of the Earth, or uniform microgravity everywhere inside a Dyson sphere, the gravity field would be flat, not curved (as it is outside any solid object). So with matter stuck near the SR, the gravity inside the current SR would be negative, perhaps 'un-building' the original matter of the first 10 solar masses that initiated the BH.
However, I don't know if the time dilation is related to the curvature of gravity or its magnitude.

[farhah]

What is the difference between milky way and the black hole?

[adityarambalakvarma]

How star compresses itself when it runs out of fuel?

[scienceilan]

but block hole absorption only neither stars nor clusters

[paulrice]

Perhaps a black hole is a mass(decayed nuclear material?) so dense, that there's no room for the electron fields to fluctuate, and thus, no emission of photons/emr occurs?

[sibapanda]

Is the black hole getting bigger and one day it will suck thebl whole solar system