7 August
2000:On 7 August 2000, astronomers from the University of Texas and other members of an international planetary research team discovered a new gas planet in a solar system only 10.5 ...
27 FÉVR. 2004
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924
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1989:On 8 August 1989, ESA launched its Hipparcos mission. Hipparcos pinpointed the positions of one hundred thousand stars. It turned slowly on its axis and repeatedly scanned right around the sky on different slants.
Hipparcos measured angles between widely separated stars, and recorded their brightness, which were often variable from one visit to the next. Each star selected for study was visited about 100 times over four years.
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6 August
1879:On 6 August 1879, Scottish-born German astronomer Johann von Lamont died.Von Lamont was born on 13 December 1805, and was noted for discovering in 1852 that the magnetic field of ...
5 August
2000: On 5 August 2000, the NASA/ESA Hubble Space Telescope witnessed the break up of Comet Linear 1999/S4.This image gave astronomers a close-up look at what may be the smallest ...
4 August
1969: On 4 August 1969, the US Mariner 7 encountered Mars (Mariner 6 had arrived a few days earlier). The Mariner 6 and 7 spacecraft were designed to fly over ...
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