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Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock that orbit the Sun. When they get near the Sun the ice turns into gas, forming the long tail, and also releases dust that forms a different tail. We’ve visited comets up close and found them to be lumpy, with vents in the surface that release the gas as ice sublimates. Eons ago, comets (and asteroids) may have brought a lot of water to Earth -- as well as the ingredients for life.
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- verified Status: Ended
- person By: Unknown
- calendar_month Release Date: 2015-06-18
- video_camera_front Companies Complexly, PBS Digital Studios
- tag Season: Season 1
- timer Episode Runtime: 12 Mins
- star Rating: 0 / 10
- visibilityViews: 2 views
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