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What Are the Phases of the Moon?
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Lunar phases
Explore the phases of the Moon and their effectiveness in tracking time
Full moon Waning gibbous moon
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Galileo spacecraft image of the Moon taken on December 7, 1992. The distinct bright ray crater at the bottom of the image is the Tycho impact basin. The dark areas are lava rock filled impact basins: Oceanus Procellarum (on the left), Mare Imbrium (cont'd
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News •

Moon-orbiting Gateway space station's habitat module arrives in the US (photos) • Apr. 18, 2025, 2:06 AM ET (Space)
Near-Earth Asteroid 2024 YR4 Likely Originated in Main Belt • Apr. 14, 2025, 11:42 PM ET (Sci.News)
Soil from the moon's far side suggests drier conditions than the side facing Earth • Apr. 9, 2025, 11:00 AM ET (AP)

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Lunar phases
Full moon
Waning gibbous moon
Explore the phases of the Moon and their effectiveness in tracking time
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