Mars Has Sled-like Tracks In Slopes
Looks like someone’s been having fun on Mars without telling anyone. Trails in slopes that seem suspiciously like sled tracks have been documented by research photographs. They weren’t made by little green men though. Blocks of dry ice are the suspects this time. These tracks are called linear gullies and you can see a much larger photograph on the Apod.gov site. The speculation is that the blocks of dry ice evaporate by the time they … Read More









