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JOHANNES KEPLER
JOHANNES KEPLER
Germany (1571 - 1630)
Johannes Kepler was a German mathematician, astronomer and astrologer, and key figure in the 17th century astronomical revolution. He is best known for his eponymous laws of planetary motion, codified by later astronomers based on his works Astronomia nova, Harmonices Mundi, and Epitome of Copernican Astronomy.
 

Enjoy these insightful and educational video clips drawn from over 70 hours of interviews with the world's leading figures in astronomy, shot during the filming of 400 Years of the Telescope.

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Catherine Cesarsky

The ALMA interferometry project
Catherine Cesarsky - International Astronomical Union

ALMA is a giant array of radio telescopes which will be used as an interferometer. It will have at least 66 radio telescopes and hopefully up to 80. By using many of these telescopes separated over the ground, we can attain in the sky extremely high resolutions.

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Catherine Cesarsky

The ALMA site at San Pedro de Atacama
Catherine Cesarsky - International Astronomical Union

We are close to San Pedro de Atacama which is now a very fashionable place to go for vacation because itís a fantastic nature. There it was possible to find this plateau at the height of 5,000 meters.

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Catherine Cesarsky

ALMA'a angular resolution
Catherine Cesarsky - International Astronomical Union

The angular resolution that you will obtain with the area depends on the distance between the various antennas.

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Catherine Cesarsky

The apex: ALMA in the early stages
Catherine Cesarsky - International Astronomical Union

We are in Chajnantor. We are at an altitude of 5,000 meters on a very large plateau, which has been selected for the construction of ALMA.

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Catherine Cesarsky

Einstein: my astronomical hero
Catherine Cesarsky - International Astronomical Union

Einstein alone in his little office, could come up with so many important discoveries.

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