Long before the full moon rises, shifting sunlight transforms the lunar surface into one of the sky's best telescope targets.

Fly me to the moon!

This only happens once in a blue moon, literally. May's second full moon is almost here, and not only is it a rare blue moon, ...

Don't miss Spica greet the waxing moon in the southern sky on May 26 ...

Millions across the world watched in awe. Governments on every inhabited continent took note. Corporate boardrooms ...