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Il y a 5 jours · Its orbit revealed that it was a new planet, Uranus, the first ever discovered telescopically. Giuseppe Piazzi discovered Ceres in 1801, a small world between Mars and Jupiter. It was considered another planet, but after subsequent discoveries of other small worlds in the same region, it and the others were eventually reclassified as ...
17 juin 2024 · Dans les profondeurs glacées de notre système solaire, une découverte scientifique intrigante pourrait enfin éclaircir l'un des mystères les plus complexes entourant Neptune et Uranus.
26 juin 2024 · Experimentally, new developments in space exploration, electronics and condensed matter physics have made additional precise experiments possible, such as the Pound–Rebka experiment, laser interferometry and lunar rangefinding. Post-Newtonian tests of gravity
Il y a 5 jours · C’est cette aptitude directe ou indirecte à la fission qui fait de l’uranium naturel la principale matière première utilisée aujourd’hui par l’industrie nucléaire pour produire de l’électricité, propulser des navires, fabriquer des armes de très grande puissance mais aussi synthétiser des radioisotopes pour l’imagerie médicale, la radiothérapie ...
Il y a 6 jours · Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, astronomy calls "ice" or volatiles.
1 juil. 2024 · When the Voyager 2 spacecraft visited Uranus almost 50 years ago, it discovered a magnetic mystery. Unlike on most planets, the ice giant’s magnetic field is tilted roughly 60° away from its...
Il y a 5 jours · Uranus's mysteriously asymmetrical and skewed magnetic field has long confounded astronomers—until now. When the Voyager 2 spacecraft zipped past Uranus in 1986, it noticed that the huge gas...
