Virgo, a constellation and the sixth sign of the zodiac. The name means the virgin. The constellation contains Spica, a bright double star. In northern latitudes, Virgo is visible in the evening during the spring and early summer.
Until recently, most people assumed that if Mars had liquid water, it no longer did and hadn't for quite some time. But scientists have recently noticed some anomalies in photos of Mars that may suggest there is water. Could there be life, too?
Hundred of meteors fly across the sky every night, but only a few make it to Earth. Meteors are best known for the brilliant streaks of light they make as they burn up in the atmosphere. Learn about 10 memorable meteor crashes that left an impression.