big bang

Cosmologists simulated 4,000 versions of the universe in order to understand what its structure today tells us about its origins.

A weird, super-powerful particle that's not truly a particle could have dominated the universe when it was just a second old, releasing a flood of ripples that permeated all of space-time.

A mysterious "kick" in the early universe may have produced more matter than antimatter. And that imbalance may have also led to the creation of dark matter, researchers now say.

A new study on the rotation of the universe's first light could suggest physicists need new rule-breaking subatomic particles

New research proposes that the first black holes came from clumps of gravitinos, exotic, hypothetical particles that managed to survive the first chaotic years of the Big Bang.

What if dark matter weren't a new type of matter at all, but huge swarms of tiny, "primordial" black holes?

All you need is some string.

A few scant equations can explain a variety of phenomena in our universe, over vast gulfs of space and time. Here's a taste of just how powerful modern physics can be.

Scientists hunting for neutral hydrogen — a rare molecule that predates every star in the universe — just took a step closer to catching their prize.

Eleven billion years ago, a hot, active, eyeball of a galaxy glared across space. It formed in a violent collision, and could help explain the Milky Way's spiral.