The fall equinox comes on Tuesday. A planetary scientist`s simple animation explains what equinoxes are ...
(World News Science)

How Earth, its axial tilt, and the sun work to create solstices, equinoxes, and seasons. Shayanne Gal/Business Insider The autumnal equinox happens Tuesday at 9:30 a.m. ET. During the March and September equinoxes, both halves of the Earth see almost exactly 12 hours of sunlight and 12 hours of nighttime. That`s because of the way Earth is angled toward the sun on those days. A planetary scientist created an animation that shows how Earth`s angle and orbit creates equinoxes and solstices. Visit...