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Astronomy

Of or pertaining to the study of celestial objects. This includes the physics, chemistry, and evolution of moons, planets, stars, galaxies, and any phenomena that takes place outside the atmosphere of Earth.

Contributors in Astronomy

Astronomy

紅矮

Physics; Astronomy

不旋轉像地球一樣的行星。其如此接近太陽的引力持有它鎖定位置,其太陽。

銀河

Physics; Astronomy

它是由組成的恒星,恒星殘餘,星際介質氣體的大規模、 引力束縛系統。

逃逸速度

Physics; Astronomy

在其中一個物件如一枚火箭,必須為了逃避重力一顆行星的引力行駛速度。

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