Births to teens fall by 8 percent
Births to females ages 15-19 and 20-24 in the United States declined to "historic lows" in 2011, declining to 31.3 births per 1,000 women, researchers at the National Center for Health Statistics wrote Monday in the journal Pediatrics. Overall, there were 3,953,593 births in 2011, down 1 percent from 2010. The birth rate was 12.7 births per 1,000 total population, the lowest rate ever reported in the nation. Birth rates fell for ages 15-29 and rose for those 35-39 and 40-44. Rates were unchanged for women 30-34 and 45-49. Among teenagers 15-19, the birth rate fell 8 percent.
To name moons, think mythology
Want to name Pluto's two tiniest moons? Then you'll need to dig into mythology. Astronomers announced a contest Monday to name the two itty-bitty moons of Pluto discovered over the past two years. Three Pluto moons already have names associated with Hades and the underworld: Charon, the ferryman; Nix, the night goddess; and Hydra, the multiheaded monster. The two unnamed moons need similarly shady references. Twelve choices are available at plutorocks.com. Online voting lasts until Feb. 25.