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 ¿ìè¶ÌÊÓÆµ
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 ¿ìè¶ÌÊÓÆµ