I’ve moved my arm away from the mole to snap pictures of the pit. Lighting at different angles can help show us the material we’re up against within the Martian subsurface. @NASA and @DLR_en teams are analyzing results.
FAQ: http://go.nasa.gov/HP3FAQ pic.twitter.com/H3S0ulLhAK
What is the visible photon flux from the sun at the Martian surface compared to that on Earth - say on a cloudless day at the equator?
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Thankyou. That s a very nice article. Must get the tomatoes planted
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