The Sky at Night - Season 16 - Eps 6: The Tenth Planet?
1972-05-24 •
? min •
⭐ 8.3/10
Patrick Moore explains why Planet X has been so difficult to detect, and what kind of place this dim, cold world at the limits of our solar system would be.
Your monthly journey through the fascinating world of space and astronomy with the latest thinking on what's out there in space and what you can see in the night sky.
