Mars Heading Towards Autumn as Mars Global Surveyor Begins Aerobraking
Depicts: Mars
Copyright: Phil James (Univ. Toledo) and Steve Lee (Univ. Colorado), and NASA
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An image of this region of Mars, taken in June 1997, is shown for
comparison. The Hellas basin is filled with bright clouds and/or
surface frost. More water ice clouds are visible across the planet
than in the September image, reflecting the effects of the changing season.
Mars appears larger because it was 44 million miles (77 million
kilometers) closer to Earth than in the September image.
Last Update: 1 September 2019