Nemesis is a hypothetical companion star to the Sun. Whether or not it actually exists, however, is a controversial matter. The concept of Nemesis arose following the development by David Raup and Jack Sepkoski of the theory that periodic...

Nemesis is a hypothetical red dwarf or brown dwarf star, orbiting the Sun at a distance of about 50,000 to 100,000 AU, somewhat beyond the Oort cloud. The existence of this star was postulated in an attempt to explain an inferred periodicity in the rate...

Astronomers disagree forcefully over the existence of a companion star to the sun, usually called Nemesis, which is postulated to send showers of comets into the inner solar system every 26 million years (SN: 4/21/84, p. 250). Supposing, however, that Nemesis does exist,...

Star Trek: Nemesis Prebook 4/28 VHS, 4/8 DVD; Street 5/20 Paramount, Sci-Fi, B.O. $43 million, Price NA VHS, $29.99, 'PG-13' for sci-fi action, violence and peril, and a scene of sexual content. Stars Patrick Stewart, Tom Hardy, Jonathan Frakes, Brent Spiner, LeVar Burton, Michael...

Storyline: It's a good idea on paper: take everyone's favorite Marvel Comics superheroes and give them all of their mutant superpowers and let them battle each other in a one-on-one fighter. Everyone from Wolverine to Daredevil to Spider Man to Venom is featured in the...

The Atlanta Braves finally figured out Oliver Perez. Beaten three times by Perez _ the only games they have lost to New York this season _ the Braves got some revenge Tuesday night, ripping the left-hander for two home runs and 10 hits in a...