View Full Version : Comet A1 Siding Spring vs Mars: Views in Space and Time

2014-Oct-15, 12:40 PM
Oh, to be a stranded astronaut on the surface of the planet Mars this week. *There’s a great scene from Andy Weir’s recent novel The Martian where chief protagonist Mark Watney uses the swift moving moons of Phobos and Deimos to roughly gauge his direction while travelling across the expansive Martian desert.(...)Read the rest of […]

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