At times Mars experiences dust storms on a global scale. In 2001 the Mars Global Surveyor and the Hubble Space Telescope recorded a huge storm. The Global Surveyor monitored the growth of several large storm centers that sent dust to high levels of the atmosphere where it circulated around the planet. The storms raged for months, and the atmosphere remained hazy long afterward.
The Mars Global Surveyor recorded these views as the 2001 dust storm obscured the planet.
Mars Global Surveyor
NASA/JPL/Malin Space Science Systems image
The Hubble observed the 2001 dust storm from Earth orbit.
Hubble Space Telescope
