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6 days agothe-names-jack-frosteeveez 115,994 notes
Quasars
When a black hole has done all of the devouring it can, enormous beams of gas shoot out of both ends of the black hole called quasars. And while these beams are pushing out energy at ten times the mass of Earth, the black hole swallows more, replacing the gas (and other matter) it’s lost.

Quasars

When a black hole has done all of the devouring it can, enormous beams of gas shoot out of both ends of the black hole called quasars. And while these beams are pushing out energy at ten times the mass of Earth, the black hole swallows more, replacing the gas (and other matter) it’s lost.

5 months ago
More facts about black holes:
  • some black holes help make universes
  • some scientists believe they might be portals to parallel universes
  • if a black hole were to come to our solar system, it would pull plants out of orbit and smash them together
  • in a millisecond, the core of the largest known star will shrink to a fraction of its size. then it starts eating its way out of the star itself
  • gamma ray bursts tell scientists how many black holes are being born
  • the edge of a black hole is called an event horizon
  • time stops in a black hole
  • the heart of a black hole is called a singularity
  • at the center of the galaxy, stars orbit at millions of miles her hour in tight orbit paths, giving proof that the center of our galaxy is a black hole
  • to see the black hole at the center of the galaxy, you’d need a telescope the size of Earth
5 months ago

Scientists measure the visible light, X-rays, and radio waves emitted by the objects around a black hole. When a normal star orbits around a black hole, they can measure the speed of the star by studying the light it gives off. This also tells them the mass of the black star.

5 months ago
5 months agoscienceing 374 notes

In 1915, the theory of general relativity, by Einstein, predicted the existence of black holes. And in 1967, American theoretical physicist, John Wheeler, applied the term ”black hole" to these collapsed objects.

5 months ago

How do scientists know black holes are there?

They see how the back hole’s gravity affects the stars and has around them and if stars are orbiting them. Also, if a star and black hole are close, high energy light is created.

Could a black hole destroy Earth?

Although black holes do suck in everything near them, they don’t go around eating stars, moons and planets. Even if the sun turned into a black hole, the Earth would not be pulled in because it would have the same gravitational pull on Earth. And even thenthe sun couldn’t turn into a black hole because it’s too small.

Facts about black holes:

  • at the end of it’s life, a star with about 20x the mass of our sun might create a black hole
  • the greater the mass of the star, the more likely it is to become a black hole after it runs out of fuel to burn
  • black holes vary in size depending on how big the star was
  • scientific evidence shows the middle of the Milky Way is a supermassive black hole called Sagittarius A with a mass of about four million suns
  • the smallest black holes are believe to have formed at the beginning of the universe
  • stellar black holes are created at the center of a very big star collapsing on itself, causing a supernova
  • supermassive black holes are thought to have been made in the same galaxy they’re in
  • strong gravity pulls all light, along with everything else, into itself and swallows it. no one knows for sure where things go after they’re swallowed by a black hole
  • light itself cannot escape a black hole
5 months ago
5 months agoprososesh 997 notes

How light and space bends around black holes

5 months agophysicscaucie 5,056 notes