Horizon Season 29 Episode 20
Episode Title: A Close Encounter of the Second Kind
Genre:
Documentary
Countries:
UK,
Airing Date: July 10, 1992
Runtime:50 mins
IMDb Rating:
Watch Horizon Season 29 Episode 20 full movie online free in HD with English subtitles – no download needed.
Horizon: This Horizon special program explores what happened when the "Giotto" explorer spacecraft passed within 100 kilometers of Halley's Comet.