SpaceToo much radiation for astronauts to make it to Mars Crews could exceed NASA's recommended maximum doses of space radiation before they get anywhere near the Red Planet 51¶¯Âþ
Space'Crazy quilt' of moves may free stuck Mars rover After using a test rover to try out dozens of individual moves to free Spirit from a sand trap, engineers say a variety of manoeuvres is best – they aim to set them in motion on Monday 51¶¯Âþ