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Is space empty? Astronomers used to think so, but nowadays it is believed there is matter spread out between the stars so that we look out through a sort of cosmic fog. Patrick Moore talks about what astronomers have learned by studying this matter.
Episode 5
Is space empty? Astronomers used to think so, but nowadays it is believed there is matter spread out between the stars so that we look out through a sort of cosmic fog. Patrick Moore talks about what astronomers have learned by studying this matter.
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