Here's what you need to know to make the most of the partial solar eclipse on Sept. 21, as the moon takes a 'bite' out of the sun.

The moon will appear to take a "bite" out of the sun during a deep partial solar eclipse on Sept. 21.

Solar eclipses only occur at the New Moon phase of the lunar cycle (a series of eight unique phases of the moon's visibility) ...

Catch a delicate crescent moon from Sept. 23–27 and watch it pair with Spica, Mars and Antares in the west after sunset.