Halley's Comet: Once in a Lifetime : Season 13 Episode 1
PBS int(0)
Aired: January 21st, 1986 @ 9:00 PM EST on PBS
NOVA observes worldwide preparations as amateur comet hunters, astronomers and scientists armed with specialized cameras, high powered telescopes and spacecraft look to the heavens in search of the expected arrival in 1986 of Halley's Comet.