21 August
1995: On 21 August 1995, Subrahmanyan Chandrasekhar died.An Indian-born astrophysicist, he was a Nobel Laureate in 1983. The term Chandrasekhar's limit shows that those stars which retain an end-of-life mass ...
27 FÉVR. 2004
Date de publication
1958
Vues
1989: On 22 August 1989, it was discovered that the planet Neptune had a ring system.
Voyager 2 had taken images of Neptune on 20 August 1989, five days before its closest encounter with the planet on 25 August. Voyager 2's images showed the rings to be complete but with bright clumps. Like Uranus and Jupiter, Neptune's rings are very dark but their composition is unknown.
Modal média
20 August
2001: On 22 August 2001, Sir Fred Hoyle died. A British astronomer and founder of the Institute of Astronomy at Cambridge, he was best known for his contributions to knowledge ...
19 August
2000: On 19 August 2000, the second payload of the ESA's Cluster mission was launched aboard a Russian Soyuz rocket from Baikonur, Kazakhstan.Cluster is a collection of four spacecraft flying ...
18 August
1999: On 18 August 1999, the NASA/ESA/ASI Cassini-Huygens spacecraft said goodbye to Earth as it completed a highly accurate pass by our planet and swung away towards its encounter with ...
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