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Astronomers Create First Detailed Images Of Surface Of Giant Star（图）
Astronomers Create First Detailed Surface Of Giant Star
2018/2/1
An international team of astronomers has produced the first detailed images of the surface of a giant star outside our solar system, revealing a nearly circular, dust-free atmosphere with complex area...
Climate cycles may explain how running water carved Mars' surface features
Climate cycles running water carved Mars surface features
2016/12/13
Dramatic climate cycles on early Mars, triggered by buildup of greenhouse gases, may be the key to understanding how liquid water left its mark on the planet's surface, according to a team of planetar...
Numerical predictions of surface effects during the 2029 close approach of Asteroid 99942 Apophis
Asteroids,dynamics Asteroids, surfaces Near-Earth objects Regoliths Tides,solid body
2015/12/25
Asteroid (99942) Apophis’ close approach in 2029 will be one of the most significant small-body encounter events in the near future and offers a good opportunity for in situ exploration to determine t...