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.
A lunar land rush is the most likely thing in the world (or, rather, out of it). As private companies gaze spaceward with dollar signs in their eyes, it's time to start settling some questions about space ownership, use and management.
A single pulsar is fascinating enough, but as a set, these rapidly rotating neutron stars help scientists figure out mysteries of the universe.