Skip to comments.Astronomy Picture of the Day 12-24-02
Posted on 12/24/2002 12:26:41 AM PST by petuniasevan
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
2002 December 24
Explanation: Spring reached the north pole of Mars in May, and brought with it the usual dust storms. As the north polar cap begins to thaw, a temperature difference occurs between the cold frost region and recently thawed surface, resulting in swirling winds between the adjacent regions. In the above image mosaic from the Mars Global Surveyor spacecraft currently orbiting Mars, the white material is frozen carbon dioxide that covers much of the extreme north. The choppy clouds of at least three dust storms can be identified.
Hey - my dad managed a Sambo's Restaurant in Vallejo back twenty years ago. We lived in Chico - megacommute for him!
Thanks for the ping, fascinating as always.
It would be better as a scientific outpost, like Antarctica. Life would be harsh for a long time; you wouldn't be spending much time hiking in the Martian forests. Living on Mars would be something like going camping but staying in the Winnebago.
-40 is -40, but -120 celsius is -184 Fahrenheit.
The Martian equatorial regions' ground temps can reach the 60s Fahrenheit.
The polar regions in their winters can get as cold (ground temp) as -220 F.
The mean surface temperature on Mars (and it's mean all right!) is around -80 F.
The thin atmosphere cannot hold much heat; it's always colder than the surface.
Here's a graphic from the Mars Pathfinder mission of 5 1/2 years ago:
Pathfinder's location is about 19.33 N, 33.55 W.
A "Sol" is a Martian day, about 24.65 Earth hours.
Kelvin is the Celsius scale measured from absolute zero. Just subtract 273 from any Kelvin temp for the Celsius equivalent. Then convert to Fahrenheit with the following formula: X times 9 divided by 5 plus 32.
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