Impact Cratering Short Course & Field School 2019
Sept 28 - Oct 5, 2019
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Next Solar Maximum may be Safest Time for Manned Missions to Mars
Recent trends in solar activity show that the next solar maximum may be unique opportunity to send humans into deep space.
It is colder inside some craters near the lunar poles than it is on the surface of Pluto (25K, or -415F).