Ultimate guide to comets

Predicting the future is considered a fool’s game. But it’s one many of us like to play. And seeing as we asked a selection of experts about the biggest breakthroughs of the century so far (p38), we c

Showcasing the incredible world we live in

After a long, arduous climb, NASA’s Perseverance rover has finally reached the top of Jezero Crater’s rim. It took the rover three and a half months to vertically ascend 500 metres (1,640ft), at times

Many birds have fabulous plumage to attract mates or send warning messages. Some of the colours in their feathers are produced by microscopic structures on the feather surface that absorb and reflect