black holes
When does a black hole get created.
A black hole is created when a star dies.
What is a black hole?
A black hole is an object with such powerful gravity that nothing can escape from it, including light
Will our Sun become a black hole?
No Stars like the Sun just aren't massive enough to become black holes.
Are black holes 'doorways' to other parts of the universe?
Only in science fiction. Anything that falls into a black hole is trapped there, and it cannot come out elsewhere in the universe.
How many black holes are there?
To use a technical term, gobs.
Are any black holes close to earth?
The closest black holes yet discovered are several thousand light-years away.
Do black holes really exist?
Probably Astronomers have discovered quite a few objects that can only be explained as black holes.
What is the biggest black hole?
The largest known black hole appears to be about three billion times the mass of the Sun.
Can anything ever escape from a black hole?
Nothing that falls into a black hole can come back out again -- at least not in its original form.
How can a black hole's own gravity, but not light, escape from it?
In the case of a black hole, it's best to think of gravity as Albert Einstein described it: a warp in space-time.
What happens when you get close to a black hole?
The exact effects depend on the size and mass of the black hole.
Where did the name 'black hole' come from?
Princeton physicist John Archibald Wheeler coined the term in the 1960.
Will our universe become a black hole?
Unlikely Recent developments that show our universe is expanding at an ever-increasing rate.
Can a black hole absorb a black hole
Two colliding black holes send ripples through the space-time fabric of the Universe that are called gravitational waves. It is possible for two black holes to collide. Once they come so close that they cannot escape each other's gravity, they will merge to become one bigger black hole.
What happens if a person goes into a black hole?
Your feet feel a stronger gravitational pull than your head, because they are closer to the black hole. As a result, your body is stretched apart. For small black holes, this stretching is so strong that your body is completely torn apart before you reach the event horizon.
How does a black hole affect time?
As you get closer to a black hole, the flow of time slows down, compared to flow of time far from the hole. (According to Einstein's theory, any massive body, including the Earth, produces this effect. ... Inside the black hole, the flow of time itself draws falling objects into the center of the black hole.
Do black holes emit anything?
Hawking showed that quantum effects allow black holes to emit exact black-body radiation. The electromagnetic radiation is produced as if emitted by a black body with a temperature inversely proportional to the mass of the black hole.
Can time escape a black hole?
Nothing, not even light, can escape from inside the event horizon. ... Due to this effect, known as gravitational time dilation, an object falling into a black holeappears to slow as it approaches the event horizon, taking an infinite time to reach it.
What would a black hole look like up close?
But around a black hole, there is light from a luminous swirl of super heated matter yet to fall into the black hole. When the light passes near the event horizon, it bends and gets distorted by the pull of the black hole's strong gravity. This sing of the light outlines a dark region called the black hole's shadow.
Have we ever found a black hole?
The first modern solution of general relativity that would characterize a black hole was found by Karl Schwarz child in 1916, although its interpretation as a region of space from which nothing can escape was first published by David in 1958.
Can gamma rays escape a black hole?
Although no-one has ever actually seen a black hole or even its event horizon, this accretion disk can be seen, because the spinning particles are accelerated to tremendous speeds by the huge gravity of the black hole, releasing heat and powerful x-rays and gamma rays out into the universe as they smash into each other ...
Can information escape a black hole?
The black hole information paradox is a puzzle resulting from the combination of quantum mechanics and general relativity. Calculations suggest that physicalin formation could permanently disappear in a black hole, allowing many physical states to devolve into the same state.
Can a black hole absorb a black hole?
Two colliding black holes send ripples through the space-time fabric of the Universe that are called gravitational waves. It is possible for two black holes to collide. Once they come so close that they cannot escape each other's gravity, they will merge to become one bigger black hole.
What happens if a person goes into a black hole?
our feet feel a stronger gravitational pull than your head, because they are closer to the black hole. As a result, your body is stretched apart. For small black holes, this stretching is so strong that your body is completely torn apart before you reach the event horizon.
Can we survive a black hole?
Black holes are bizarre objects that get their name from the fact that nothing can escape their gravity, not even light. If you venture too close and cross the so-called event horizon, you'll never escape. For small black holes, you'd never survive such a close approach anyway.