Mars would be the first long-term space based mission. If you've only made a pil...

dfinninger on March 13, 2015 | parent | context | favorite | on: Suddenly, It Seems, Water Is Everywhere in Solar S...

Mars would be the first long-term space based mission. If you've only made a pillow-fort (ISS), or stayed in a tent in your backyard (moon), wouldn't you try to camp in your local state park before backpacking into the wilderness?