Pisces, a constellation and the 12th sign of the zodiac. The name means The Fishes. Pisces contains no bright stars. It is bounded by Andromeda on the north, Pegasus on the north and west, Aquarius on the west and south, Cetus on the south and east, and Aries and Triangulum on the east. The vernal equinox, the point where the sun crosses the celestial equator at the beginning of spring, is in Pisces.
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.