You might think galaxies can’t ever find each other in our runaway cosmos, but it turns out gravity can sometimes overcome ...

Or parts of it are. The night sky may seem calm, even serene, but that masks events of a catastrophic and nearly unimaginable scale. Across the galaxy and even the cosmos itself, immense outbursts of ...

The six-year results from the Dark Energy Survey highlight unresolved tensions in standard cosmological theory.

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields ...

Stars engage in a celestial battle between gravity and radiation pressure. As they exhaust their fuel, gravity prevails, leading to their collapse. If a star is at least 30 times more massive than the ...

"If our hypothesized dark charge is true, then we believe there could be a significant population of primordial black holes, ...

A record-breaking neutrino detection in 2023 may mark the first time humans witnessed a primordial black hole exploding, and these ancient objects could be the dark matter holding galaxies together.

Step back 1000 years, look up at the night sky and you might notice some extra dots of light compared with today. Back then, Chinese astronomers called these “guest stars” and believed them to be ...

This idea is called the big bang model—which is an unfortunate name because it brings to mind a cosmos expanding like an ...

The six-year Dark Energy Survey has released its full results, showing that two leading models of cosmology are equally valid ...

Halle Berry revealed why she thinks her Crime 101 costars Chris Hemsworth, Mark Ruffalo and more named her as the person who ...