Alien Worlds: The Search for Second Earth (S1E02)
2021-11-03 • 48 min
Professor Brian Cox questions whether we are alone in the universe. There might be more planets than stars in our galaxy - but will we find a second Earth?
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2021-11-03 • 48 min
Professor Brian Cox questions whether we are alone in the universe. There might be more planets than stars in our galaxy - but will we find a second Earth?
