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List view record 1: Radio Astronomy. Episode 9, Hydrogen and the Structure of Galaxies [efilm]List view anchor tag for record 1: Radio Astronomy. Episode 9, Hydrogen and the Structure of Galaxies [efilm]
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Radio Astronomy. Episode 9, Hydrogen and the Structure of Galaxies [efilm]

2019
Using the laws of physics and electromagnetic radiation, astronomers can "weigh" a galaxy by studying the distribution of its rotating hydrogen. But when they do this, it soon becomes clear something is very wrong: A huge proportion of the galaxy's mass has simply gone missing. Welcome to the top...
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