EpisodeS32E131988-12-11
The Sky at Night
Close Encounters
There are some asteroids which pass close to the Earth! Patrick Moore talks about these 'close-approach' asteroids to the American astronomer Eleanor Helin , who has discovered many of them.
The Sky at Night
There are some asteroids which pass close to the Earth! Patrick Moore talks about these 'close-approach' asteroids to the American astronomer Eleanor Helin , who has discovered many of them.