The moon will reach a quarter of its monthly journey, illuminating one half, on June 2. Here's how to see it.

The moon will reach its third quarter phase on May 20, at which point half of its Earth-facing disk will be bathed in shadow.

The first quarter moon is the perfect opportunity to explore shadowed craters lining the terminator.

The half-lit disk of the first quarter moon will grace the night sky on Monday (June 2), presenting a wealth of lunar features to explore before Earth's natural satellite sets below the horizon in ...