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Viking 1

Viking 1

August 20, 1975

Viking 1 entered into a Mars orbit on June 19, 1976. In order to find a good landing location it began taking pictures of the surface and then made that landing the next day in location Chryse Planitia. It was the second ever landing of a manmade craft on the surface of Mars and the first lander to function over a long period of time.

The lander took weather readings and soil samples using a scoop.

Dust clouds on Mars

Dust clouds on Mars

1809

A French scientist by the name of Honore Flaugergues observes “yellow clouds” on Mars. These have later been found to be large dust clouds.

Image: A more recent picture of a dust storm taken by the Mars Reconnaissance Orbiter. Credit: NASA