Season 63 · Episode 8 of 11
Aired Sep 8, 2019
Alien Worlds
Sun, Sep 8, 2019
0 of 11 watched this season
Astronomers have found more than 4,000 planets circling stars other than our own. What do we know about these alien worlds and how have we managed to detect them?
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Airs
Sun, Sep 8, 2019
Show
The Sky at Night
848 episodes
Episode
S63 · E8
in The Sky at Night