Αποτελέσματα Αναζήτησης
8 Σεπ 2020 · A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black hole’s “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of light, which is the speed limit of the cosmos.
- 10 Questions You Might Have About Black Holes - NASA Science
A black hole is an extremely dense object in space from...
- Black Holes - NASA Science
These objects aren’t really holes. They’re huge...
- 10 Questions You Might Have About Black Holes - NASA Science
A black hole is a region of spacetime wherein gravity is so strong that no matter or electromagnetic energy (e.g. light) can escape it. [2] Albert Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. [3] [4] The boundary of no escape is called the event horizon.
25 Αυγ 2021 · Black holes may sound like science fiction, but there is significant evidence to prove they are real.
6 Μαΐ 2022 · Black holes are real, they're some of the strangest objects in space. Discover what black holes are and how they form with our informative black hole guide.
23 Σεπ 2019 · A black hole is an extremely dense object in space from which no light can escape. While black holes are mysterious and exotic, they are also a key consequence of how gravity works: When a lot of mass gets compressed into a small enough space, the resulting object rips the very fabric of space and time, becoming what is called a singularity.
These objects aren’t really holes. They’re huge concentrations of matter packed into very tiny spaces. A black hole is so dense that gravity just beneath its surface, the event horizon, is strong enough that nothing – not even light – can escape. The event horizon isn’t a surface like Earth’s or even the Sun’s.
7 Ιαν 2021 · Now that black holes can be studied directly, scientists wonder whether they really are the strange beasts Albert Einstein's theory predicts. In a simulation, seen from various angles, a black hole’s intense gravity warps the image of the disk of hot, glowing gas surrounding it.
