What is the basic definition of a black hole?

What is the basic definition of a black hole?

A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can’t see black holes.

What is a black hole for kids?

Black holes are the strangest objects in the Universe. A black hole does not have a surface, like a planet or star. Instead, it is a region of space where matter has collapsed in on itself. This catastrophic collapse results in a huge amount of mass being concentrated in an incredibly small area.

What is black hole and how it is formed?

Stellar black holes form when the center of a very massive star collapses in upon itself. This collapse also causes a supernova, or an exploding star, that blasts part of the star into space. Scientists think supermassive black holes formed at the same time as the galaxy they are in.

What is the biggest black hole?

At the other end of the scale there is a true monster: the black hole at the center of the quasar TON 618. It possesses 66 billion solar masses, the most massive yet discovered.

Why do black holes exist?

A black hole forms when the mass of an object, like a star, suddenly collapses down to a tiny volume. A small object with a large mass causes a gaping dent in space-time. This enormous warp creates a gravitational field so strong that nothing—not even light—can escape from it.

Can life exist in a black hole?

So planets could potentially form around black holes, but that’s no guarantee that they offer a life-friendly environment. On Earth, living things are hugely dependent on the light and warmth from the Sun to survive. Without the glow of a star, life around a black hole would likely need an alternative source of energy.

What if the Sun is blue?

Since the shortest wavelengths of light coming from the sun disperse the most and thus colour the sky blue, if the sun itself was blue, almost all the light from it would scatter in the sky and we wont be able to see the sun at all? After all, subtracting all the blue only makes the sun appear yellow.

What happens if Earth goes in a black hole?

The strong uneven gravitational pull on the Earth would continuously deform the planet. This would generate a tremendous amount of internal friction, heating the Earth’s core to disastrous levels. It would likely give rise to Earth-shattering earthquakes, volcanoes, and deadly tsunamis. The trifecta of doom.

Can we survive a black hole?

Regardless of the explanation, we do know that it is highly unlikely that anyone entering a black hole would survive. Nothing escapes a black hole. Any trip into a black hole would be one way. The gravity is too strong and you could not go back in space and time to return home.

Is a black hole good or bad?

Black holes, like active volcanoes, are only dangerous if you get too close to them. They disintegrate and disassemble practically everything within their range of influence. Other things they fling around and away from themselves at neck-breaking speeds to say the least. Originally Answered: How dangerous is a black hole?

A black hole is a region of spacetime where gravity is so strong that nothing — no particles or even electromagnetic radiation such as light — can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of no escape is called the event horizon.

What exactly is a black hole?

Philosophy: What exactly is a black hole? A black hole is conventionally thought of as an astronomical object that irrevocably consumes all matter and radiation which comes within its sphere of influence.

How to explain a black hole?

Take a large piece of plastic food wrap (Saran Wrap) and hold it.

  • Put a small ball in the middle so that the sheet dips.
  • Pour a couple of drops of water on the sheet.
  • Remove the ball and have the child use his/her finger to push down and bend the sheet.
  • Have them push their finger hard enough to make a hole in the wrap.