Submitted by RootaBagel t3_103e5ka in space
Author (not me) makes the case against human missions to Mars. Because (1) we can't keep humans alive without reliable closed-loop life support, and (2) we risk permanently destroying the evidence of native life by contaminating Mars with Earth microbes. Also, (3) we can get a lot more science done with robots.
Edit: Adding link to article:
https://idlewords.com/