Ep 09: What If There’s Already Life on Mars?

Published: Jan. 24, 2018, noon

How do we make sure we don’t bring harmful extraterrestrial microorganisms back to Earth from space? How do we keep our Earth microbes from contaminating potentially habitable worlds like Mars or Europa? How much effort do we really need to put into protecting these hypothetical lifeforms? SETI marine biologist Margaret Race joins us to explain … Continue reading "Ep 09: What If There’s Already Life on Mars?"