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Artists impression of an alien skyscape with nearby planets large in the sky

Space

TRAPPIST-1 worlds are close enough for life to hop between them

Some think life came to Earth from Mars on a meteorite. If this sort of thing can happen, it’s 1000 times more likely on TRAPPIST-1’s three habitable worlds

News

Artist's impression of quasar

Space

Oldest, biggest black holes may have come from enormous stars

News

brain artwork

Health

To advance science we need to think about the impossible

Leader

telescope 1

Technology

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

Regulars

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

Astronomers have found dwarf galaxies that seem about to merge, backing ideas about how large galaxies form and the scattered nature of dark matter

News

Space

Binary stars shred up and shove off their newborn planets

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