The end state of a black hole may be a mind-bending kind of spacetime independent of time, scientists say.
The most massive black holes began growing at a very fast rate when the universe was only about 1.2 billion years old, according to a new study by astronomers in Tel Aviv.
Scientists using NASA's Fermi Space Telescope have detected antimatter produced above thunderstorms on Earth, a phenomenon never seen before.
And, like cosmic Russian dolls, our universe maybe nested inside a black hole in another universe, a new study says.
