Close Encounters
- Episode aired Dec 11, 1988
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.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.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.