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Mars Craft Detects Falling Snow
Soil Tests Also Hint at Past Presence of Liquid Groundwater
Icy snow falls from high in Mars's atmosphere and may even reach the planet's surface, scientists working with NASA's Phoenix lander reported yesterday.
Laser instruments aboard the lander detected the snow in clouds about 2 1/2 miles above the surface and followed the precipitation as it fell more than a mile. But because of limitations with the technology, it was unclear whether any of the powdery stuff made it all the way to the surface.
"Nothing like this view has ever been seen on Mars," said Jim Whiteway of York University in Toronto, lead scientist for the Canadian-supplied Meteorological Station on Phoenix. "We'll be looking for signs that the snow may even reach the ground."
Originally posted by justsomeboreddude
That is way cool. So wouldnt that mean mars has to have an atmosphere for snow to form above the surface? I thought they didnt have an atmosphere.
[edit on 29-9-2008 by justsomeboreddude]
That is Japan, and now this is mars:
Also, compare this from earth:
The above Earth based second image is an aerial view of a forest canopy in Virginia Beach here in the USA. Note the variety of tree tops where the sunlight is reflecting strongly off of the branching's with the least leafy growth on them. Note the look of those light reflective branching's. The parallel with the Mars evidence branching's should be obvious to most of you. The only real difference is the massive size scale of the Mars evidence relative to this tiny by comparison Earth evidence. This image was sent to me by Calvin Lipscomb (firstname.lastname@example.org) recognizing the similarities with the Mars evidence and the help is appreciated.