NASA’s Carbon Dioxide Greenhouse Gas Observatory Captures ‘First Light’ at Head of International ‘A-Train’ of Earth Science Satellites

by Ken Kremer August 12, 2014

NASA’s first spacecraft dedicated to studying Earth’s atmospheric climate changing carbon dioxide (CO2) levels and its carbon cycle has reached its final observing orbit and taken its first science measurements as the leader of the world’s first constellation of Earth science satellites known as the International “A-Train.” The Orbiting Carbon Observatory-2 (OCO-2) is a research […]

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How Do We Terraform Venus?

by Fraser Cain July 24, 2014

It might be possible to terraform Venus some day, when our technology gets good enough. The challenges for Venus are totally different than for Mars. How will we need to fix Venus? Fraser Cain on Google+

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A Dark and Dusty Avalanche on Mars

by Jason Major November 4, 2013

Mars may be geologically inactive but that doesn’t mean there’s nothing happening there — seasonal changes on the Red Planet can have some very dramatic effects on the landscape, as this recent image from the HiRISE camera shows! Jason Major on Google+

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Dry Ice Drives Dramatic Changes on Mars

by Jason Major January 25, 2013

Mars may not be tectonically active but that doesn’t mean there’s nothing happening on the Red Planet’s surface. This video from NASA’s Jet Propulsion Laboratory shows the dramatic seasonal changes that take place in Mars’ polar regions when the frozen carbon dioxide — called “dry ice”  — coating the basalt sand dunes begins to thaw […]

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Giant Spiders on Mars!

by Jason Major November 16, 2012

Eek, spiders! All right, so it’s not actually little green arachnids we’re talking about here, but they are definitely spidery features. Called araneiform terrain, these clusters of radially-branching cracks in Mars’ south polar surface are the result of the progressing spring season, when warmer temperatures thaw subsurface CO2 ice. Jason Major on Google+

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