S15E04
01 Apr 1971

A Black Hole in Space?

The Sky at Night – Season 15

Patrick Moore discusses with Professor Samuel Tolansky a startling new theory about an 'invisible' star in the two-star system Epsilon Aurigae. Could this mysterious object be, not an ordinary star at all, but a 'collapsar' or collapsed star within a black hole moving through the galaxy?

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