According to the equations that govern black holes, the larger one of these cosmic behemoths is the lower its average density ...

For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

ORCs are vast, faint rings of radio energy that surround galaxies and can be detected only in radio wavelengths of the ...

If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. Space is big, and ...

Even before the first stars lit up the Universe, the Cosmos was not the cold place most researchers once imagined. New ...

We obviously can’t put the universe on a giant set of scales, but scientists have found astonishingly clever ways to […] ...

This hypothesis is not new. It was given the affectionate nickname of Big Crunch, and says that the accelerated expansion of ...

After a century of observations spanning the breadth of the cosmos and theoretical insights that push humanity's vision of ...

The early universe was already warm before reionization, revealing that the first stars did not flicker on in an icy cosmos.

To answer Robertson: The Higgs field doesn’t appear to have more valleys to explore, according to our current understanding.

The bright outflow jets of J0529 are being fed by a process called Super-Eddington Accretion, where an object exceeds its ...

Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and that black holes appeared later. But some have proposed that it went the other ...