Scorpius, a constellation in the Southern Hemisphere and the eighth sign of the zodiac. (The sign of the zodiac is known as Scorpio.) From the mid-north latitudes the constellation can be seen in the south during summer. The bright, reddish star Antares is the brightest star in Scorpius.
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.
On August 24, 2006, the International Astronomical Union (IAU), an organization of professional astronomers, passed two resolutions that collectively revoked Pluto's planetary status.