Two gigantic canyons on the moon — both deeper than the Grand Canyon — were carved in less than 10 minutes by floods of rocks ...

Each of these primary moon phases marks a quarter of the lunar cycle and lasts only a moment. The remaining phases – "waxing crescent," "waxing gibbous," "waning gibbous," and "waxing gibbous ...

This lunar cycle also features a total lunar eclipse ... the Moon will move through the constellations Leo and Virgo. Totality begins at 2:26 a.m. and lasts for a little over an hour until ...