1982年1月1日

1分钟阅读

土星的卫星

环绕这颗行星的 17 个冰冷天体展现出惊人的地质演化范围。它们中的许多都有超过 40 亿年历史的陨石坑，但其中一个的地面如此年轻，以至于看不到任何陨石坑

作者：劳伦斯·A·索德布洛姆和 托伦斯·V·约翰逊

加入我们的科学爱好者社区！

00
More by Laurence A. Soderblom

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.

More by Torrence V. Johnson
大众科学 Magazine Vol 246 Issue 1This article was originally published with the title “The Moons of Saturn” in 大众科学 Magazine Vol. 246 No. 1 (), p. 100
doi:10.1038/scientificamerican0182-100
View This Issue
© . All rights reserved.