Where did that Russian meteor come from?

New data from NASA shows that the meteor that exploded over Chelyabinsk, Russia, on Feb. 15 has been crossing the Earth's orbit for thousands of years. But scientists couldn't see it coming with ground-based telescopes, mostly because it was hidden in the sun's glare. NASA also said the blast was the equivalent of 500 kilotons of TNT -- roughly 30 times the energy released by the atomic bomb dropped on Hiroshima. The fireball shattered windows across the Russian city, injuring about 1,200 people and causing about $33 million in property damage.

Did a Roman Catholic cardinal admit to homosexual encounters?

Scottish Cardinal Keith O'Brien apologized Sunday for "times that my sexual conduct has fallen below the standards expected of me as a priest, archbishop and cardinal." O'Brien stepped down as an archbishop last week after a British newspaper published accounts from four men, including three current priests, who said the cardinal initiated inappropriate contact with them.

Will sequestration impact Metro service?

Metro's General Manager Richard Sarles said last week that the transit agency could lose as much as $10 million in fares as federal workers stay home on furlough days mandated by sequestration. Metro is slated to lose another $12 million in federal funds for capital projects. But the transit system will keep running on a regular schedule, despite the furlough days, Sarles said.

-Liz Essley