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How 'empty' is space? Astronomers used to think that there was no material between the stars, or between the galaxies; they now know that there is a great deal. Patrick Moore talks about interstellar material to Professor Alec Boksenberg, Director of the Royal Greenwich Observatory.
Episode 9
How 'empty' is space? Astronomers used to think that there was no material between the stars, or between the galaxies; they now know that there is a great deal. Patrick Moore talks about interstellar material to Professor Alec Boksenberg, Director of the Royal Greenwich Observatory.
No cast information available.