How Big Are The Planets? The Sky at Night : Season 1973 Episode 5
BBC Four 20m
Aired: August 19th, 1957 @ 10:00 PM EST on BBC Four
Measurements of the planets with infrared
BBC Four 20m
Aired: August 19th, 1957 @ 10:00 PM EST on BBC Four
Measurements of the planets with infrared
