Ken Stanford

Scientists studying the terrifying meteor that exploded without warning over a Russian city last winter say the threat of space rocks smashing into Earth is bigger than they thought.

World carbon dioxide pollution levels in the atmosphere are accelerating and reached a record high in 2012, the U.N. weather agency said Wednesday.

Health and Human Services Secretary Kathleen Sebelius acknowledged problems with the startup of the health care law on Wednesday but defended it too, saying it is starting to drive down health care costs for consumers.

The Daughters of the American Revolution (DAR) lot at Alta Vista Cemetery is being converted into a garden.

Toyota's quarterly profit soared 70 percent, and the world's top-selling automaker raised its earnings forecast, as cost cuts and the weaker Japanese yen compensated for slightly weaker vehicle sales.

Secretary of State John Kerry waded again into the nitty-gritty of faltering Israeli-Palestinian peace talks on Wednesday, saying he was optimistic that tensions and difficulties could be overcome, even as both sides traded barbs about who is to blame for the current poor state of negotiations.