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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

From Buzz Aldrin on the lunar surface to the first US spacewalk by Ed White, Tim Peake updates the story of “ordinary people doing extraordinary jobs”

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

News

Jeff Goldblum in The Fly

Comment

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

Comment

ESA astronaut Andreas Mogensen

Space

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

News

Herbig-Haro 46/47, captured by NASA's James Webb Space Telescope

Space

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

The James Webb Space Telescope is looking ever further back in the universe’s history and the unexpected high luminosity of the sources it sees hints that the way we think stars form from gas in the early universe may need revision, astrophysicist Richard Ellis has revealed at 91av Live

News

Space

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

Regulars

Comment

The best new science fiction books of October 2023

Culture

Space

Students search desert for lost rocket after attempted launch to space

News

Technology

Super-heatproof computer memory survives temperatures over 500°C

News