SpaceSigns of running water on Mars dunes are probably just dry sand The strange striped patterns that appear and fade away on Martian slopes were once thought to be evidence of flowing water – they’re actually made by dry sand 51¶¯Âþ
SpaceNeptune’s other moons were normal until Triton crashed the party Neptune’s moons are unlike anything in the solar system, thanks to Triton barrelling in and laying waste to the moons that were there before it 51¶¯Âþ