As the Firefly Aerospace mission known as Blue Ghost makes it way to the moon, it is snapping some gorgeous images as it goes — including striking images of Earth in its rearview mirror.

Only when the moon, Earth and the sun are perfectly aligned is the moon 100% full. And sometimes — once in a blue moon — the moon is full twice in a month (or four times in a season ...

By an hour before sunrise, the Moon appears to hang just below the blue-white star as they hover about 30° high in the southwest. Because Spica lies so close to the ecliptic — the plane of the ...

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