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The Astronomers
Season 1
Episode 5

Stardust

April 18, 1991

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The Astronomers - S1 - E5

The deaths of stars allow human lives to come into being. This episode explains how and looks at the complete life cycle of the stars that make up our galaxy. Two American scientists are shown researching the forces that bring gas and dust together with such intense pressure that nuclear fusion results and a star is born. Hans Bethe, the first scientist to explain in detail how stars are fueled, appears. Three Australian scientists look into the death of a star by studying the remains of the supernova explosion of 1987.

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The Astronomers: Season 1 - 6 Episode s

1x1 - Where is the rest of the universe?
April 12, 1991
Astronomers believe the universe contains at least ten times as much mass as can be seen and accounted for. How are they able to detect this missing mass and to discover more about it are the subjects of this episode. Astronomers Vera Rubin and Tony Tyson describe their search for dark matter, material invisible to us but whose gravity affects the motion of the stars and can alter the light reaching us from distant galaxies. In addition, John Dobson, a self-proclaimed "sidewalk astronomer," shares his knowledge with people he encounters.
1x2 - Searching for black holes
April 15, 1991
At the center of galaxy NGC 1275, some 200 million light years from Earth, there might be a supermassive black hole. In a attempt to map the galaxy and look deep into its heart, an international team of astronomers has linked radio telescopes throughout Europe and America in order to produce a picture of NGC 1275. Jessie Greenstein, the co-discoverer of quasars, and Italian radio astronomer Tiziana Venturi appear.
1x3 - A Window to Creation
April 16, 1991
American and Japanese astronomers are followed as they seek to measure cosmic background radiation, the heat remaining from the Big Bang, by launching rockets and satellites above the Earth's atmosphere. Their results contribute to research into the origins of the universe. Also shown are two astonomers who are mapping the universe in 3D and discovering that galaxies have formed into gigantic groups.
1x4 - Waves of the Future
April 17, 1991
Gravity waves, as yet undetected but predicted by Albert Einstein, may contain the answers to many questions about the universe. Soviet scientist Leonid Grishchuk and American scientist Kip Thorne describe their attempts to prove the existence of the waves. The episode also visits a gravity-wave detector prototype and describes the three-mile-long full-scale version, planned for construction in the late 1990's. Grishchuk and scientist Stephen Hawking meet.
1x5 - Stardust
April 18, 1991
The deaths of stars allow human lives to come into being. This episode explains how and looks at the complete life cycle of the stars that make up our galaxy. Two American scientists are shown researching the forces that bring gas and dust together with such intense pressure that nuclear fusion results and a star is born. Hans Bethe, the first scientist to explain in detail how stars are fueled, appears. Three Australian scientists look into the death of a star by studying the remains of the supernova explosion of 1987.
1x6 - Prospecting for Planets
April 19, 1991
Efforts to discover other planetary systems and to learn more about the planets of our own solar system are examined. Images are shown that have been sent back to Earth by Voyager, the space probe exploring the outer edges of the solar system.

The Astronomers: All seasons

S1: The Astronomers
6 Episode s

1x1 - Where is the rest of the universe?

1x2 - Searching for black holes

1x3 - A Window to Creation

1x4 - Waves of the Future

1x5 - Stardust

1x6 - Prospecting for Planets

S1: The Astronomers