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Space

The rise, the fall and the rebound of cyclic cosmology

Cyclic cosmology, or the big bounce, is the idea that the universe will eventually crunch back together and then go through another big bang. Columnist Leah Crane finds that, appropriately, it’s coming back

Comment

Katy Clough on numerical relativity

Video

New simulations reveal what happened at the beginning of the universe

Video

We’ve glimpsed before the big bang and it’s not what we expected

Space

We’ve glimpsed before the big bang and it’s not what we expected

Features

Space

The first quantum fluctuations set into motion a huge cosmic mystery

Comment

Space

Why it's taking a century to pin down the speed of the universe

News

Space

Best ever map of early universe is double-edged sword for cosmologists

News

Space

The first water may have formed surprisingly soon after the big bang

News

How cosmic stasis may drastically rewrite the history of the universe

Physics

How cosmic stasis may drastically rewrite the history of the universe

Features

The astrophysicist who may be about to discover how the universe began

Space

The astrophysicist who may be about to discover how the universe began

Features

Why string theory has been unfairly maligned - and how to test it

Physics

Why string theory has been unfairly maligned - and how to test it

String theory is widely considered beyond empirical investigation. But we could conceivably test it thanks to ancient particles called moduli, which might appear in astronomical observations, says theorist Joseph Conlon

Features

Physics

A second big bang? The radical idea rewriting dark matter’s origins

Features

Space

The quantum experiment that could help find evidence of the multiverse

Features

Space

JWST should soon glimpse the very first stars born after the big bang

News

Space

Dark stars: Have we finally found a weird sun powered by dark matter?

Features