6 January
1998: On 6 January 1998, NASA launched Lunar Prospector, a satellite designed for a low-polar orbit investigation of the Moon.
31 DÉC. 2003
Date de publication
1692
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1610: On 7 January 1610, Galileo wrote his first letter describing telescopic observations.
In his observations, he saw the Moon's cratered surface. He wrote, "...it is seen that the Moon is most evidently not at all of an even, smooth and regular surface, as a great many people believe of it and of the other heavenly bodies, but on the contrary it is rough and unequal. In short it is shown to be such that sane reasoning cannot conclude otherwise than that it is full of prominences and cavities similar, but much larger, to the mountains and valleys spread over Earth's surface."
Galileo went on to describe the phenomena in considerable detail, rehearsing, as it were, the observations and conclusions he was to publish more elaborately a few months later in Sidereus Nuncius.
Modal média
5 January
1969: On 5 January 1969, the Soviet Venera 5 probe was launched towards Venus to obtain atmospheric data.
4 January
1958: On 4 January 1958, the Soviet Sputnik I satellite, the first man-made object to orbit Earth, fell back into the atmosphere and disintegrated, after 92 days in space.
3 January
2002: On 3 January 2002, the NASA/ESA Hubble Space Telescope team released an image of strangely glowing dark clouds - known as 'globules' - silhouetted against against the red glow of hydrogen gas and bright stars in a busy star forming region, IC 2944.
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