The month brings a spectacular lineup of celestial sights—including a rare chance to see Mercury without a telescope and a ...
Turn your telescope on the moon at sunset on Oct. 28 to see a colossal "X" and "V" form on the lunar surface as sunlight ...
17hon MSN
No One Actually Knows What a Moon Is
The universe has quasi-moons, mini-moon, and moonlets, but no official definition of what counts as a moon.
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