Posts Tagged ‘Mars’

NASA Confirms Water on Mars

Thursday, July 31st, 2008

Laboratory tests aboard NASA’s Phoenix Mars Lander have identified water in a soil sample. The lander’s robotic arm delivered the sample Wednesday to an instrument that identifies vapors produced by the heating of samples.

“We have water,” said William Boynton of the University of Arizona, lead scientist for the Thermal and Evolved-Gas Analyzer, or TEGA. “We’ve seen evidence for this water ice before in observations by the Mars Odyssey orbiter and in disappearing chunks observed by Phoenix last month, but this is the first time Martian water has been touched and tasted.”

–>Link to NASA article

Ancient collision with huge asteriod could explain strange shape of Mars

Thursday, July 10th, 2008

A prime theory to explain how this global asymmetry came about is that a huge impact blasted away much of the northern hemisphere’s crust. The prime suspect in the hunt for clues to such a collision had been an extensive structure in the northern hemisphere, thought to have formed about 4.4 billion years ago. 

–>Link to article

Phoenix Mars Lander Confirms Frozen Water

Monday, July 7th, 2008

Scientists relishing confirmation of water ice near the surface beside NASA’s Phoenix Mars Lander anticipate even bigger discoveries from the robotic mission in the weeks ahead.

The key new evidence is that chunks of bright material exposed by digging on June 15 and still present on June 16 had vaporized by June 19. “This tells us we’ve got water ice within reach of the arm, which means we can continue this investigation with the tools we brought with us,” said Mark Lemmon of Texas A&M University, College Station, lead scientist for Phoenix’s Surface Stereo Imager camera. He said the disappearing chunks could not have been carbon-dioxide ice at the local temperatures because that material would not have been stable for even one day as a solid.

–> Link


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