Space

What is retrograde in astronomy? This article explains everything you need to know

What does retrograde mean in astronomy?

How to see the Quadrantid meteor shower, thumbnail

Quadrantid meteor shower 2023: How to see the first meteor shower of the new year

Jupiter, as seen from the James Webb Space Telescope

Black holes, exoplanets and distant galaxies: James Webb Space Telescope’s best discoveries after one year in space

The starship Enterprise NCC 1701-D investigates a Dyson sphere then gets stuck inside

Dyson spheres: How humans (and aliens) could capture a star’s energy

Make this JWST ornament for your tree

James Webb Space Telescope: Make a DIY ornament for your Christmas tree

How to see the Ursid meteor shower

Ursid Meteor Shower 2022: Your guide to spotting a rare Christmas shooting star tonight

If the moon were bigger, at what point would it be deemed a planet and the Earth and ‘Moon’ a ‘binary planet’ system? © Getty Images

What is a binary planet system?

A centipede-like crawler moon robot

Meet the autonomous Moon robots about to change space travel forever

A photographer standing under a meteor shower

Geminid meteor shower 2022 How to see tonight

If I travelled at light speed, would far away objects disappear? © NASA/ESA/CSA/James Webb Space Telescope

What would happen to our view of far-off galaxies, if we travelled at (or near) light-speed towards them?

The full Cold Moon rises this December and is the last full Moon of the year

Cold Moon 2022: How to see December’s full Moon in the UK tonight

How to spot Mars in the night sky, thumbnail

Mars in opposition: How to see the Red Planet at its biggest and brightest tonight

Instant Genius

Instant Genius podcast Mars in opposition, with Dr Stu Clark

If the universe is expanding, how is it possible that the Milky Way and the Andromeda galaxy are getting closer to one another? © NASA/ESA/STSCL

If the universe is expanding, how are the Milky Way and Andromeda getting closer together?

DART: Everything you need to know about NASA’s mission to deflect an Asteroid

DART: Everything you need to know about NASA’s mission to deflect an asteroid