Six astronauts aboard the International Space Station study a sample collected from Mars that could provide evidence for extraterrestrial life - the first example of life beyond Earth. The crew's research methods end up having unintended consequences. [more inside]
Cosmos: A Space-Time Odyssey: The Immortals Season 1, Ep 11
On the possibility of life elsewhere in the universe. How meteorites may carry life between worlds, as well as allow earthly life to have survived the scouring of the earth's surface in its early history. The possibility and potential problems of communicating with intelligent extraterrestrial life. How civilizations die, and how ours may survive.