Movie Clip Shows Whirlwinds Carrying Dust on Mars NASA

NASA’s Mars Exploration Rover Spirit is taking movies of dust devils — whirlwinds carrying dust — scooting across a plain on Mars. “This is the best look we’ve ever gotten of the wind effects on the martian surface as they are happening,” said Dr. Mark Lemmon, a rover team member and atmospheric scientist at Texas A&M University, College Station.