The September Equinox: 'Tis the Season to Spy the Zodiacal Light

This week leading up to the September equinox offers you a fine chance to catch an elusive phenomenon in the pre-dawn sky. We're talking about the zodiacal light, the ghostly pyramid-shaped luminescence that heralds the approach of dawn. Zodiacal light can also be seen in the post-dusk sky, extending from the western horizon along the […]