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A "black hole", theorized by Stephen Hawking as a point with gravity so high that the escape velocity would exceed the speed of light. At the time, it was a revolutionary concept; since then, astronomers have gathered evidence of several black holes.

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14y ago
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15y ago

Galaxy Clusters or Black Holes is the answer.

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13y ago

Black hole, at a distance less than its event horizon.

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6y ago

A black hole traps light. It's gravity is so great that light cannot escape the gravity well.

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13y ago

A black hole is a collapsed star that has a gravitational pull that is so strong that light itself can not escape from it. We can they exist by the impact they have on the objects near them.

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11y ago

A black hole, commonly found in space

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11y ago

A black hole.

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13y ago

a black hole in theory

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14y ago

That's called a "black hole".

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3y ago

Hi

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Q: What Object in space that has so much gravity light can't escape?
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What causes the light from far away galaxies to bend?

If the light from a distance galaxy passes near a massive cosmic object, then the gravity of that object will distort space-time. That will cause the light to bend.


If gravity waves travel at the speed of light and black holes' escape velocity is much greater than the speed of light then how can gravity waves escape a black hole?

Gravity is not a 'wave', it is a field of curvature of space-time caused by objects with mass. A black hole contains the mass of a star, compressed to the space of a single atom (a singularity), the compression of so much mass into such a small space, is why the black hole has such a powerful gravitational pull.


What can escape from black holes?

As far as we know, once anything passes the event horizon (including light), it goes into a portion of space that is so intensely warped by the black hole's gravity (as gravity distorts space*) that all directions essentially lead to the center of the black hole beyond that horizon. This would mean that regardless what the velocity of the object was, it could never escape. It is a point of absolutely no return.(*This is really just a theory, no matter how elaborate, since you can only know so much about a black hole and how gravity works)


What is gravity distortion?

Gravity bends space, and because light travels through space gravity distorts light. Actually, gravity warps spacetime, so just as space is bent, so is time. Gravity thus distorts both space and time.


Is black hole celestial body or not?

The "black hole" itself is not an object and does not exist. It is just the point of rubicon wherein once passed, nothing can escape the singularity's gravitational pull, hence "black" hole; light (Photons) cannot even escape. However, the singularity within the black hole is an object. It's an object of infinite density and extreme mass compressed into a very tiny point.

Related questions

Is there another place in outer space that has gravity?

Yes, every planet and every star has gravity. In fact, every object that has mass, has gravity. Black holes have so much gravity that even light cannot escape.


What if there was gravity in space?

There is gravity in space. Gravity is everywhere. You can never escape gravity.


How is the force of earths gravity overcome when an object is launched into space?

When on Earth, you can escape if you move away from the Earth at the "escape" speed. Gravity will slow you down and you will reach zero speed at an infinite distance.


What is a blackhole in space?

the astrogeological lightless object in the space having such a powerful gravitational force which does not allow to escape any kind of matter, gas, etc. and not even light, can escape from it and which is formed by the indefinite contraction of heavy and large neutron star under the action of their own gravity.


Which objects in space emits no light?

black hole as they have a very powerful gravitational pull such that even light could not escape its gravity and fall into it


What causes the light from far away galaxies to bend?

If the light from a distance galaxy passes near a massive cosmic object, then the gravity of that object will distort space-time. That will cause the light to bend.


How do you describe a black hole?

A black hole is an object that has completely collapsed under the force of gravity into an infinitely dense point. Around it gravity greatly distorts space and time so that, within a certain radius, it is impossible to move outward. Nothing, not even light can escape.


Where does the black hole get its name?

The term "black hole" originated from a 1964 article titled Black Holes in Space by journalist Ann Ewing. A black hole is what is left of an object that has completely collapsed under the force of gravity. Within a certain radius the gravity is so strong that not even light can escape, making the object completely black.


If gravity waves travel at the speed of light and black holes' escape velocity is much greater than the speed of light then how can gravity waves escape a black hole?

Gravity is not a 'wave', it is a field of curvature of space-time caused by objects with mass. A black hole contains the mass of a star, compressed to the space of a single atom (a singularity), the compression of so much mass into such a small space, is why the black hole has such a powerful gravitational pull.


Why doesnt the gas on a gas giant planet escape into space?

For the same reason that our atmosphere on Earth does not escape into space - gravity.


What does black hole means?

A black hole is a super-dense object in space, usually a star, which has become so massive it has collapsed in upon itself. The mass of such an object is so great that the gravitational field it creates pulls in everything nearby. As an object draws closer to a black hole, the gravity exerted upon it becomes more powerful, requiring more and more energy to counter the curvature of space. The speed it would take to overcome this curvature and pull away from the black hole is known as escape velocity. When an object draws close enough that its escape velocity exceeds the speed of light, the upper limit of how fast any object in the universe can travel, that object is trapped and will inexorably move in towards the center of the black hole, known as the singularity. The point at which the escape velocity exceeds the speed of light is called the event horizon. Nothing which has passed that point will ever return to normal space. As indicated above, the gravity of the singularity is so strong that nothing, even light itself, moves fast enough to escape the pull. The inability of light to get away from the object is what gives the black hole its name.


An engine with a speed that can escape earth's gravity?

space probe