Yuri Gagarin

Project Breakthrough Starshot plans to send robot spacecraft to our closest star, Alpha Centauri, on a trip that will take 20 years.

Russia’s doomed probe for Mars spirals ever closer to the Earth before it plunges back into the atmosphere in a fiery end.

Three weeks after the 50th anniversary of the Russian who became the first man to travel in space, the US is honouring the man who followed him.