Why is mars still very much alive?

The best discoveries, inventions and surprises

Mars once had vast oceans on its surface. Then its magnetic field weakened, its atmosphere thinned, and its water vanished. But the numbers don’t add up. For the Red Planet to have transformed from a

Ten years ago, Pluto emerged from the gloom at the Solar System’s ragged edge – and a new world came in from the cold. Five billion kilometres (3 billion miles) from Earth, on 14 July 2015, NASA’s pia

The discovery of buried ‘mud waves’ off the ...

Amazing answers to your curious questions

Explore the secret landscape concealed by the ice of this Arctic island nation