The most incomprehensible thing about the universe is that it is comprehensible,” Albert Einstein once pondered. But even as ...

How astronomers used gravitational lensing, a space-time trick predicted by Einstein, to detect a black hole measuring 30 ...

But in the past two decades, new types of black holes have been seen and astronomers are beginning to understand how they ...

A controversial theory suggests the observable universe is the result of matter rebounding after the collapse of a black hole ...

A team of scientists is proposing a bold alternative to the Big Bang theory, suggesting that our universe may have formed ...

Some physicists think our reality is a kind of cosmic hologram, with space, time, and gravity as manifestations of a ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

Our universe may exist inside a black hole. This may sound strange, but it could actually be the best explanation of how the universe began, and what we observe today. It's a theory that has been ...

"Our universe was small a long time ago and expanded," Poplawski said."From the other side, one would not see our expansion." Essentially, a black hole could seem bigger on the "inside" than how ...

Even the largest-known black hole in the universe — a cosmic titan named TON 618, weighing an estimated 40 billion solar masses — appears to be near the theoretical limit of how big black ...

The growth of massive merging black holes with masses over 40 times that of the sun could be linked with the accelerating expansion of the Universe in a "cosmological coupling." U.S. World ...