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The essential guide to proving we’ve found alien life

Space

The essential guide to proving we’ve found alien life

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to come thick and fast. But when we've found it, how will we know for sure?

Features

3D6BBB4 Comet Lemmon photographed from northern Italy on 26th October 2025.

Space

Comets were on fire this year – for better or worse

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How 3 imaginary physics demons tore up the laws of nature

Physics

How 3 imaginary physics demons tore up the laws of nature

Features

��ýs inside a science base in the Moon conduct a variety of humorous experiments. We see a cat chasing after a giant laser beam; a scientist being eaten by a venus fly trap, a star falling through a Christmas tree as a scientist tries and fails to put it on top, a scientist going to a 'moonshine' bar, robots attending a seminar, a scientist trapping a human brain in a forcefield, and scientists stepping through portals. In the sky above the spaceship, Santa is being abducted by aliens.

Physics

Inside the wild experiments physicists would do with zero limits

Features

Why we only recently discovered space is dark not bright

Space

Why we only recently discovered space is dark not bright

Features

Aurora Borealis dancing over Tromso Urban Skyline. Tromso Panorama and winter night landscape with Northern Lights (Aurora Polaris) on a cold night, with starry sky, polar lights and snowcapped mountains on Kvaloya Island in the background. Cityscape with Brightly Street Light of the Arctic Capital, Northern Norway

Earth

The audacious quest to light up the sky with artificial auroras

Features

The supernova remnant Cassiopeia A

Space

Odd elements in supernova blast might have implications for alien life

News

TX DATE:21-07-2025,TX WEEK:29,EMBARGOED UNTIL:08-07-2025 00:00:00,DESCRIPTION:Dramatic reconstruction of early anatomically modern Homo sapiens living in Africa.,COPYRIGHT:BBC Studios,CREDIT LINE:BBC / BBC Studios

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The four best science documentaries of 2025

Culture

Physics

Why quantum mechanics says the past isn’t real

Comment

An artwork made my layering many paper cutouts, showing an astronaut near a black hole. Within the black hole are colourful swirls, stars and specks

Physics

Black hole entropy hints at a surprising truth about our universe

Two clashing ideas about disorder inside black holes now point to the same strange conclusions, and it could reshape the foundations of how we think about space and time

Features

Space

What would Russia's inability to launch crewed missions mean for ISS?

Analysis

Space

Why dark matter is still one of the biggest open problems in science

Comment

Space

Astronomers may have glimpsed evidence of the biggest stars ever seen

News

Technology

The 19 best Christmas gifts for science lovers (and nerds)

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