November 28, 2021

THIS IS CALLED “BACK CONTAMINATION” AND IT’S NOTHING NEW: Alien organisms could hitch a ride on our spacecraft and contaminate Earth, scientists warn. I was on the NASA Planetary Protection Subcommittee that deals with that over a decade ago, and we worried about it for the first Moon landings.

Related: Why I hope there’s no life on Mars.

InstaPundit is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to