The best discoveries, inventions and surprises

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

Your dusty, distant destination awaits, with unique geology that reveals billions of years of cosmic collisions

20 amazing answers t o curious

The Moon has a diameter of around a quarter that of Earth and travels around our planet in a circular orbit roughly every 27 days. But Earth also possesses a number of tiny co-orbital bodies – objects

The prospect of life on Mars – Earth’s planetary next-door neighbour, an alien world that betrays tantalising hints of a watery past – has bewitched humanity for centuries. From the ‘canals’ seen by a