Physicists have started to treat a once-fringe idea with surprising seriousness: that our entire observable universe might be the interior of a black hole that formed in some larger cosmos. The notion ...

The Big Bang theory has dominated our understanding of the universe’s origin for almost 100 years. It describes a moment when all of space, time, and energy were born from a single infinitely dense ...

Some things in cosmology may simply be unknowable. Why is there something rather than nothing? What lies outside the universe? What is inside a black hole? That last one has been niggling at ...

An artist's concept of a tidal disruption event (TDE), which happens when a star passes close to a supermassive black hole. The gravity of the black hole pulls material from the star and launches a ...

Seventeen miles of underground tunnel, thousands of superconducting magnets, and protons whipped to a fraction below light ...

Here is what you will learn when you read this story: Little red dots (LRDs) observed by the James Webb Space Telescope were initially thought to be galaxies, but something was amiss. Researchers who ...

A black hole inside a distant spiral galaxy is devouring material from the universe around it and creating winds at speeds never before seen by astronomers. The European Space Agency said that the ...