https://padlet.com/pronelrinkumar30v/rev4mjjqh2x5zc9t Made with joy en-us 2020-10-20 03:49:17 UTC 2023-11-19 14:06:28 UTC hello@padlet.com https://cdn.spacetelescope.org/archives/images/screen/heic0409a.jpg pronelrinkumar30v https://padlet.com/pronelrinkumar30v/rev4mjjqh2x5zc9t/wish/843709564 - What is a black hole?
- How is it form?
- Who found black hole?
- Who is EHT?
- Who is Albert Einstein?
- Examples of black holes.
- What are black hole made up of?
- Will our sun become black hole?
- Does time exists in black hole?
- Can we survive in black hole?
- WHat did EHT saw?
- What is the general theory of relativity.]]> 2020-10-20 06:05:14 UTC https://padlet.com/pronelrinkumar30v/rev4mjjqh2x5zc9t/wish/843709564 pronelrinkumar30v https://padlet.com/pronelrinkumar30v/rev4mjjqh2x5zc9t/wish/843714287 - Black holes are some of the strangest and most fascinating objects in outer space. They're extremely dense, with such strong gravitational attraction that even light cannot escape their grasp if it comes near enough.
- 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.
- Karl Schwarzschild developed the idea for black holes from relativity's equations in 1916, just a year after Einstein published his theory.
- EHT is Event Horizon Telescope.
- Albert Einstein first predicted the existence of black holes in 1916, with his general theory of relativity.
- Cygnus X-1, M87, Centaurus A
- 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.
- No, it's too small for that! The Sun would need to be about 20 times more massive to end its life as a black hole. ... In some 6 billion years it will end up as a white dwarf — a small, dense remnant of a star that glows from leftover heat.
- Black holes do not exist where space and time do not exist, says the new theory. The quintessential feature of a black hole is its "point of no return," or what is more technically called its event horizon.
- 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.
- The EHT saw the black hole in the center of galaxy M87 while the telescope was examining the event horizon, or the area past which nothing can escape from a black hole. 
-you are going to find it in this link =  https://padlet.com/pronelrinkumar30v/s87h15jvh4bew59j]]> 2020-10-20 06:07:29 UTC https://padlet.com/pronelrinkumar30v/rev4mjjqh2x5zc9t/wish/843714287 pronelrinkumar30v https://padlet.com/pronelrinkumar30v/rev4mjjqh2x5zc9t/wish/844096699 2020-10-20 08:56:36 UTC https://padlet.com/pronelrinkumar30v/rev4mjjqh2x5zc9t/wish/844096699