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How to see Mercury, the moon and the Gemini twins pass close together in the night sky this week
On June 26, you'll have an opportunity to behold the sight of a slender waxing crescent moon positioned just to the right of ...
In the trace lies the truth: Halogens and the fate of the lunar crust
On a clear night, the moon you gaze upon looks the same as it looked for the first humans that walked Earth—the same ...