March Equinox

The March equinox occurs on March 20th. This event marks the astronomical first day of spring in the Northern Hemisphere.

The Sky Tonight Update: Full Worm Moon

The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated.  This full moon was known by early Native American tribes as the Worm Moon because this was the time of year when the ground would begin to soften and the earthworms would reappear.  As the soil warms in spring, it invites robins and other birds to feed.