Mars research focuses on past habitability
In a study released this week, scientists took a step toward understanding whether Mars once had favorable environmental conditions for microbial life.
Zinc and germanium have been discovered in sedimentary rocks in Gale Crater by the NASA rover Curiosity, according to research published in the Journal of Geophysical Research-Planets.
The significance is that zinc and germanium “tend to cluster together in high temperature fluids and often occur together on Earth in hydrothermal deposits containing sulfur,” according to the American Geophysical Union. “Extreme thermal environments on Earth are home to a diverse array of microbial life adapted to these conditions, and these organisms may have been some of the first to evolve on Earth.”
The research is Zinc and germanium in the sedimentary rocks of Gale Crater on Mars indicate hydrothermal enrichment followed by diagenetic fractionation, Journal of Geophysical Research-Planets, Aug. 23, by Jeff A. Berger, et al.
Research reported this week in the journal Nature Geoscience concludes that localized rapid snowfalls occur in the red planet's atmosphere.
Mars contains less water vapor than Earth’s atmosphere, but the planet's atmosphere hosts clouds, the scientists point out. Using computer simulations, they found that these snowstorms or “ice microbursts” occur only during the Martian night.
The research is Snow precipitation on Mars driven by cloud-induced night-time convection,published in Nature Geoscience, Aug. 21, by Aymeric Spiga, et al.
Related:
Three takeaways about the red planet
Mars in Brief: More evidence of habitable environment
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