Date: 2005-11-22 15:05:04Planetary science Celestial mechanics Astrophysics Observational astronomy Stellar astronomy Gravitation Planet Star Binary star Astronomy Space Physics | | Journey into Space: Gravity, Orbits, and Collisions Introduction A leaf falls to the forest floor. The Earth whirls around the Sun. Billions of stars orbit around the center of the Milky Way Galaxy. Behind it all is the Add to Reading ListSource URL: teacher.scholastic.comDownload Document from Source Website File Size: 51,28 KBShare Document on Facebook
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