天王星的卫星

旅行者2号近距离拍摄了五颗主要的卫星。它们都具有冰冷的表面,但比土星的卫星更暗且岩石更多。在它们的早期历史中,有三颗在地理上非常活跃

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TORRENCE V. JOHNSON has an asteroid named after him: 2614 Torrence, a body about one kilometer in diameter. Working at the Jet Propulsion Laboratory in Pasadena, Calif., he has been the project scientist for Galileo since 1977--some three quarters of his career as a planetary scientist. He was a member of the imaging team for Voyager and is now on the imaging team for the Cassini mission to Saturn.

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大众科学 Magazine Vol 256 Issue 4This article was originally published with the title “The Moons of Uranus” in 大众科学 Magazine Vol. 256 No. 4 (), p. 48
doi:10.1038/scientificamerican0487-48
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