Dust Storms on Mars NASA

Press Conference – October 11, 2001: A pair of eagle-eyed NASA spacecraft — Mars Global Surveyor and Hubble Space Telescope — are giving amazed astronomers a ringside seat to the biggest global dust storm seen on Mars in several decades. The Martian dust storm, larger by far than any seen on Earth, has raised a cloud of dust that has engulfed the entire planet for the past three months.