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Content with the tag: “water on mars”
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New Technique Can Reveal Mars' Watery Past
A new study in Earth and Planetary Science Letters looks at the role of the mineral jarosite in determining when and under what conditions water was present on Mars. On Earth, jarosite can only form in the presence of water, so the detection by the Mars Rover Opportunity of its presence on Mars means that water had to exist at some point in the past. The new study, by scientists at NAI’s New York Center for Astrobiology, is the first in a series of experiments designed to provide a roadmap of sorts for...
Source: [Syracuse University]
November 1, 2011 / Posted by: Aaron Gronstal
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Mars was Wet, but was it Warm?
Mars is frozen today, but when it was young there may have been liquid water on its surface. What does the latest evidence indicate about the ancient martian climate? At the recent Astrobiology Science Conference (AbSciCon) 2010, Jim Kasting of Penn State and Brian Toon of the University of Colorado discussed the possibility of a warm and wet Mars. A primary point of debate was whether or not physical features on the surface of Mars required extended warm, wet periods to form, or if short-term warming generated by impacts was enough.Source: [astrobio.net]
June 2, 2010 / Written by: Leslie Mullen
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Windy, Wet and Wild
The team behind NASA’s Mars Exploration Rovers has released new results from the two years that Opportunity spent exploring Victoria Crater. Opportunity’s instruments have revealed more evidence for a windy and wet past on Mars. The findings further our understanding of the habitability of ancient Mars.
Source: [Astrobiology Magazine]
May 23, 2009 / Posted by: Aaron Gronstal -
Too Salty to Freeze
Liquid water has been detected and photographed for the first time on Mars. Researchers have identified salty, liquid water on a leg of NASA’s Mars Phoenix Lander. The discovery means that previous assumptions that water could only exist as ice and vapor on Mars due to the planet’s surface temperature and pressure may be incorrect.
The team from the University of Michigan believes that the droplets are highly salty water that splashed onto Phoenix’s leg when the spacecraft’s landing jets melted ice just below the martian surface. The mud droplets appeared to grow over time as they absorbed...Source: [Astrobiology Magazine]
March 20, 2009 / Posted by: Aaron Gronstal
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