DNA analysis has revealed that 26 novel species of "extremophile" bacteria were lurking in a clean room that housed NASA's ...

Accidental contamination shows how even NASA missions can send resilient Earth microbes to other planets, risking false ...

Sterilizing robotic spacecraft to prevent contamination is one thing, but sterilizing human beings is impossible. We are ...

Chinese scientists report that they’ve found a novel bacteria on the Tiangong space station, but can’t confirm if it evolved ...

A new study debates the complex ethical questions that must be considered if we're to terraform Mars and lays the blueprint ...

A new study posits that dark streaks originally believed to be signs of water on Mars' surface might not be that at all.