The Sky at Night - Season 9 - Eps 6: How Long is a Day?
1965-06-04 •
? min •
⭐ 8.3/10
Recent studies suggest that the day on Mercury may be two months long. Patrick Moore discusses how this affects our ideas of conditions on Mercury, and how its length of day compares with that of other planets.
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.
