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Searching for life on Mars isn’t worth the risk to Earth

Space

Searching for life on Mars isn’t worth the risk to Earth

The Mars Sample Return mission aims to retrieve samples of Martian rock and soil to look for signs of life – but a rethink is needed to ensure Earth’s biosecurity, says Paul Marks

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20 July 1969. Neil Armstrong?s photos of Buzz Aldrin?s first steps on the Moon. This was what it all boiled down to in the end, even after the unprecedented feats of rocketry and all the extraordinary technical innovation which had safely flown two astronauts to a destination a quarter of a million miles from home: the basic human act of walking.

Space

Walking on the moon: candid photos from astronaut Tim Peake’s new book

Regulars

The best new science fiction books of November 2023

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The best new science fiction books of November 2023

Culture

Illustration of a large asteroid colliding with Earth on the Yucatan Peninsula, forming the Chicxulub crater

Definition

Chicxulub: The asteroid that killed the dinosaurs

Space

Mouse embryos have been grown in space for the first time

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Jeff Goldblum in The Fly

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The scariest sci-fi horror movies for Halloween, chosen by an expert

Culture

Monika Schleier-Smith

Physics

The physicist trying to create space-time from scratch

Features

Is space-time quantum? Six ways to unpick the fabric of the universe

Physics

Is space-time quantum? Six ways to unpick the fabric of the universe

Features

S3F98G Colorful balloons against the light

Space

How the balloon analogy for an expanding universe is almost perfect

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ESA astronaut Andreas Mogensen

Space

ISS livestream: Watch a live link-up with astronaut Andreas Mogensen

ESA astronaut Andreas Mogensen, commander on the International Space Station, answers questions from students at 91av Live ahead of him doing his first spacewalk on Thursday

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Space

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

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Space

A glimpse inside how the James Webb Space Telescope was put together

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Comment

The best new science fiction books of October 2023

Culture

Space

Students search desert for lost rocket after attempted launch to space

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