What We Still Don't Know — Season 1, Episode 1: Are We Alone?
Documentary • 50 min • 1 season, 3 episodes
Episode synopsis
Sir Martin explores the possibility that life exists on planets beyond our own. He unveils an unsettling scientific debate that has startling consequences for us Earthlings. Do you believe in aliens? If not, a quick glance through these pages might change your mind!
About What We Still Don't Know
Thought provoking Channel 4 series in which Sir Martin Rees investigates the great unanswered questions of science.