Your stem cells do lots of important work in your body, but a new study shows that they don't function properly in outer space. And then things get serious.
It's hard being in space. You're isolated from friends and loved ones, your mitochondria get damaged, you get dumber, and you might just get stranded for months at a time (and get under $1,500 for it). Oh, and according to a study just published, you... [2802 chars]