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Artist's impression of quasar

Space

Oldest, biggest black holes may have come from enormous stars

Big black holes from just after the big bang couldn't have formed the way modern ones do - but they could come from the collapse of the largest stars ever

News

telescope 1

Technology

How to dust a telescope’s 78-square-metre mirror with CO₂

Regulars

brain artwork

Health

To advance science we need to think about the impossible

Leader

light

Physics

Cosmic uncertainty: Is the speed of light really constant?

Features

Boltzmann brains

Physics

Universes that spawn 'cosmic brains' should go on the scrapheap

News

Globular cluster 47 Tucanae

Space

Rare mid-weight black hole found at heart of bright star cluster

News

Hologram

Space

Have we found evidence that we live in a holographic universe?

Comment

A meteorite from the Sahara

Earth

Earth’s water must have arrived here earlier than we thought

News

galaxies

Space

First evidence of dwarf galaxy merger boosts two cosmic theories

News

Artists rendition of a binary star with a disc of dust around it

Space

Binary stars shred up and shove off their newborn planets

There are more pairs of stars than solo stars in our galaxy, but fewer pairs host planets. Now we have an idea why: they rip them to shreds

News

Space

Milky Way's core could be spewing out planet-sized star chunks

News

Space

Cosmic radio bursts tracked to home galaxy for first time

News

Space

First test of rival to Einstein's gravity kills off dark matter

News

Space

Galaxy's rapid growth spurt may have spawned 3000 suns per year

News