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.
A total solar eclipse is a rare event that can be an amazing thing to witness. Learn about solar eclipses and how to observe one safely.
Venus is the second planet from the sun, and is about the same size as Earth. It is a terrestrial planet, meaning it has a solid surface. But the harsh conditions on Venus make it very inhospitable. Two spacecraft, Pioneer Venus 1 and Magellan, were able to penetrate the thick atmosphere of this planet.