9 April
1998: On 9 April 1998, scientists announced that ESA's Infrared Space Observatory (ISO) spacecraft had discovered a very steamy cloud in interstellar space.A team of US astronomers discovered a large ...
31 DEZ. 2003
Veröffentlichungsdatum
1276
Aufrufe
1995: On 10 April 1995, the Russian Deputy Minister for Foreign Affairs Georgij Enverovich Mamedov and ESA's Director General Jean-Marie Luton, at the Ministry of Foreign Affairs in Moscow, signed an agreement between the Russian Government and ESA concerning the establishment of an ESA Permanent Mission in Russia.
ESA opened its Permanent Mission in Moscow, headed by Mr Alain Fournier-Sicre, to facilitate its co-operation, with the Russian Agency in particular, across a wide range of science and technology.
1961: On 10 April 1961, scientists performed radar tracking of the planet Venus for a total of seven weeks. This proved that the 'astronomical yardstick' of 150 438 483 kilometres (93 498 125 miles), the average distance between the Earth and Sun, was true.
This distance has become the standard measure of distance within the Solar System, the Astronomical Unit (AU).
Medien-Modal
8 April
1998: On 8 April 1998, ESA's Infrared Space Observatory (ISO) ended its observational phase.
7 April
1993: On 7 April 1993, the First European Space Debris Conference was held in Darmstadt, Germany.
6 April
2000: On 6 April 2000, ESA announced that a chance encounter between Ulysses, the joint ESA/NASA spacecraft, and a comet's tail was leading scientists to conclude that comet tails extend much further than anyone supposed - right to the edge of the Solar System.
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