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8/10/2004: Polygons on Mars
The stupid "face" on Mars was easily explained. Not so easily explained are these polygons, found by the Mars Global Surveyor, and which were featured in a recent Astronomy pic of the Day, which says
| They may indicate regions where water ice lies within a few meters of the surface. Similar looking polygons are commonly found in the arctic and Antarctic of Earth, where they typically form from a repetitive cycle of freezing and thawing. |
wolf Tuesday Aug 10 11:56 AM
Toll Brothers got to Mars, apparently. Have you picked out your site yet?
tw Tuesday Aug 10 05:12 PM
In the meantime, both Mars Rovers are seeking good campsites for the next 6 months - for winter. The Southern Hemisphere of Mars will experience temperatures down to -150 degrees and often never get above zero. At least they won't have to worry about being buried in snow drifts.
With so little sun, the Rovers are down to no more than 1.5 hours of work a day and may often do nothing just to spend all day recharging batteries. Maybe they will find the garden of Eden next year. Internal heaters will be necessary just to keep both alive. Good thing we don't send humans there.
xoxoxoBruce Tuesday Aug 10 08:31 PM
The heartbreak of psoriasis. 
mmmBoy Wednesday Aug 11 11:56 AM
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Originally Posted by tw
With so little sun, the Rovers are down to no more than 1.5 hours of work a day
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