一颗岩石行星遭到了彗星的撞击，在一位艺术家的印象里，这可能就是在乌鸦座eta星附近发生的情况。
A rocky planet takes a hit from a comet in an artist's impression of what could be going on around the nearby star Eta Corvi.
除了在此模拟的照片里所看到了行星和卫星外，我们的太阳系统还包含一个恒星、一些小行星和彗星，和像冥王星那样的侏儒行星。
In addition to the planets and moons seen in this simulated photo, our solar system contains a star, asteroids and comets, and dwarf planets such as Pluto.
总体来说，以上所述的就是太阳系了——包括围绕主要行星们运转的卫星、数不胜数的小行星(包括冥王星)以及彗星。
For the main part, that's it for the solar system — including a whole host of satellites orbiting the main planets and countless minor planets (including Pluto) and comets.
应用推荐