This image shows an exposure of the north polar layered deposits (NPLD) within the northern residual ice cap. The polar layered deposits are thought to have been formed by recent climate changes on Mars, like ice ages on Earth.
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The Mars Reconnaissance Orbiter has acquired data that seems to indicate that Mars has dry-ice snowfalls.
From a press release by NASA:
Frozen carbon dioxide, better known as "dry ice," requires temperatures of about minus 193 degrees Fahrenheit (minus 125 Celsius), which is much colder than…
By Dr. Adrian Brown
Planetary physicist at the Carl Sagan Center for the Study of Life in the Universe, SETI Institute, and Gail Jacobs
When most people look at photos of the Martian landscape, they see the kind of dry topography that, while attractive, shows only that at first glance Mars…
This image shows layered sedimentary deposits in Candor Mensa, a broad plateau of thickly stacked sedimentary rocks in Candor Chasma, part of the giant troughs of Valles Marineris.
Valles Marineris is a system of tectonic depressions formed by down-dropping faults; the floors are among the lowest…
I thought Michael Egnor was the DI's biggest liability for stupid arguments. Now I'm thinking based on Aferensis' posts that it's probably Dave Scot based on his suggestion that "All the hominid fossils we have wouldn't fill a single coffin."
But my favorite part of how embarrassing he is for…