20 de janeiro de 2011

NASA Mars Orbiter Spots Caves on Red Planet!

January 04, 201


Huge pits or caves pumcture a bright, dusty plain near the 
Martian volcano Ascraeus Mons in an image taken between 
October 1 and November 1 by NASA's 
Mars Reconnaissance Orbiter (MRO).
Caves and other underground structures, including lava 
tubes, and canyon overhangs would be potentially useful for 
manned missions to the Red Planet, providing shielding from both 
the elements and intense radiation that a Mars mission would expose 
astronauts to. They might also offer access to minerals, gases, ices, and any 
subterranean life that the crew of such a mission would probably be searching for.
Released in December, the image is among a series of new views snapped by
MRO's HiRISE camera that show intriguing geological features on Mars.
Each image covers a strip of Martian ground 3.7 miles (6 kilometers) wide
and can reveal a detail about as small as a desk—and so far no sign 
of Star Wars monsters.

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