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General relativity at 100: Einstein's witness in the sky

Space

General relativity at 100: Einstein's witness in the sky

Studies of the cosmic microwave background have delivered a peerlessly accurate picture of the cosmos – but dark spectres haunt it

Features

Rosettawatch: Onion layers prove 67P is a slow-mo comet mash-up

Rosettawatch: Onion layers prove 67P is a slow-mo comet mash-up

News

The Large Magellanic Cloud, if van Gogh had painted it

Space

The Large Magellanic Cloud, if van Gogh had painted it

Regulars

Multiverses-in-a-box let us simulate the cosmos before we see it

Space

Multiverses-in-a-box let us simulate the cosmos before we see it

News

Last Word

Galaxy twirl

Regulars

Earth's composition might be unusual for a planet with life

Space

Earth's composition might be unusual for a planet with life

News

Black holes may be brick walls that bounce information back out

Space

Black holes may be brick walls that bounce information back out

News

Spider galaxies spotted eating gas caught in the cosmic web

Spider galaxies spotted eating gas caught in the cosmic web

News

Spider galaxies spotted eating gas caught in the cosmic web

Space

Spider galaxies spotted eating gas caught in the cosmic web

News

People in kitchen-workers' white outfits, one holding a sparkler, one looking at an enlarged splash in white liquid, one holding some kind of particle collision trail set

Space

What came before the big bang?

Has the universe existed forever? Or was there something before it? To find out, we need a working theory of quantum gravity and a new conception of time

Features

Space

Is the universe infinite or just very big?

Features

Knotty network could have powered universe's early growth spurt

News

Space

Knotty network could have powered universe's early growth spurt

News

Life

More than 100 billion billion Earth-like planets might exist

News