SpaceCaves carved by water on Mars may hold signs of past life Eight possible cave openings found on the Martian surface look to have once had ancient streams flowing into them, suggesting they are promising places to look for evidence of life 51¶¯Âþ
Space51¶¯Âþ recommends The Martian – sci-fi fun for all the family The books, TV, games and more that 51¶¯Âþ staff have enjoyed this week Culture