CAPE CANAVERAL, Fla. (AP) - Scientists have uncovered a vast ocean beneath the icy surface of Saturn's little moon Enceladus.
FORT HOOD, Texas (AP) - The soldier who killed three people at Fort Hood may have argued with another service member prior to the attack, and investigators believe his unstable mental health contributed to the rampage, authorities said Thursday.
SEATTLE (AP) - A decade before a colossal landslide buried a Washington community, county officials considered buying up people's homes there to protect them from such a disaster.
SYRACUSE, N.Y. (AP) - A city board on Thursday gave a Muslim group the go-ahead to remove six crosses from the roof and spires of a century-old former Catholic church so the now-vacant Gothic structure can be used as a mosque.
BOULDER, Colo. (AP) - Good news for people who are sticklers for punctuality: The National Institute of Standards and Technology has a new atomic clock that isn't supposed to gain or lose a second in roughly 300 million years.
LOS ANGELES (AP) - Three of eight people who contracted bacterial meningitis this year have died, and all three had sex with other men, Los Angeles County health officials said Thursday.
WASHINGTON (AP) - A sense of belonging to the middle class occupies a cherished place in America. It conjures images of self-sufficient people with stable jobs and pleasant homes working toward prosperity.
DENVER (AP) - Organizers of Denver's annual April 20 marijuana festival on Wednesday announced that rapper B.o.B and singer Wyclef Jean will headline the event as they try to draw a big post-legalization crowd and shake the memory of last year's event, which was marred by a still-unsolved shooting.
TRENTON, N.J. (AP) - The Food and Drug Administration said Wednesday that it has approved the first tablet in the U.S. for gradually reducing hay fever symptoms, an alternative to months of weekly doctor visits for uncomfortable allergy-desensitizing shots.
FORT HOOD, Texas (AP) - A gunman opened fire Wednesday at Fort Hood in an attack that left four dead, including the shooter, law enforcement officials said.
WASHINGTON (AP) - The Supreme Court's conservative majority voted Wednesday to free wealthy donors to give to as many political candidates and campaigns as they want, further loosening the reins on giving by big contributors as the 2014 campaign moves into high gear.
DENVER (AP) - A Wyoming college student visiting Denver on spring break jumped to his death after eating a marijuana cookie that his friend legally purchased in one of Colorado's recreational pot shops, authorities said Wednesday.
HARTFORD, Conn. (AP) - Some Newtown residents are calling for the Sandy Hook Elementary School shooter's home to be torn down and replaced with a park or nature preserve, according to a new community survey.
EVERETT, Wash. (AP) - As medical examiners painstakingly piece together the identities and lives of the 29 people known killed when a mudslide wiped out a small Washington community, one mystery troubles them.
CINCINNATI (AP) - A Cincinnati man pleaded guilty to the accidental shooting death of his 11-year-old daughter during a drunken fight with the girl's mother and was sentenced Wednesday to six years in prison.
WASHINGTON (AP) - Amid appeals for bipartisanship, President Barack Obama in just three days has provoked Republicans on issues as disparate as immigration, Wall Street and the Keystone XL pipeline - a combative mix of defense and offense that underscores Washington's political realignment.
CAPE CANAVERAL, Fla. (AP) - A spacewalking astronaut ended up with unwanted water in his helmet Wednesday after breezing through a cable and lube job outside the International Space Station.
CONCORD, N.H. (AP) - First, Iowa. Then, South Carolina. Now, New Hampshire.
FAIRBANKS, Alaska (AP) - Warm weather continues to play havoc for organizers of the world's most famous sled dog race.
• POLICE: BUS AIDE STOLE LUNCH MONEY, FOOD FROM PRESCHOOLERS: MILVILLE, N.J. (AP) - A school bus aide has been charged with stealing lunch money and bagged lunches from preschoolers in New Jersey.
NEW YORK (AP) - Nickelodeon is creating brand-new content and resurrecting old shows for a mobile subscription service aimed at preschoolers.
WASHINGTON (AP) - The Supreme Court ruled Wednesday that a state regulatory board made up mostly of dentists violated federal law against unfair competition when it tried to prevent lower-cost competitors in other fields from offering teeth-whitening services.
NEW YORK (AP) - The owner of T.J. Maxx, Marshalls and HomeGoods stores became the latest retailer to boost pay for its U.S. workers, putting pressure on other chains to do the same.
LAS VEGAS (AP) - Police knew a 19-year-old suspect in a shooting that killed a neighborhood mother of four smoked marijuana before he surrendered during a standoff last week, and investigators questioned him while he was high, a defense lawyer said Tuesday.
MIAMI (AP) - George Zimmerman, the former neighborhood watch volunteer who fatally shot Trayvon Martin in a 2012 confrontation with the teenager, will not face federal charges, the Justice Department said Tuesday.
SEATTLE (AP) - For the first time, a study shows that a drug used to treat HIV infection also can help prevent it when taken before and after risky sex by gay men.
STEPHENVILLE, Texas (AP) - A former Marine was convicted Tuesday in the deaths of the "American Sniper" author and another man at a shooting range two years ago, as jurors rejected defense arguments that he was insane and suffered from psychosis.
LIBERTY, Mo. (AP) - A Missouri sixth-grader with Asperger's syndrome has suffered complications from a severe beating he took in the lunchroom from another student, his parents say.
CHICAGO (AP) - Chicago Mayor Rahm Emanuel failed to capture a majority of the vote in Tuesday's municipal election, an embarrassment for the former White House chief of staff because it forces him into a runoff this spring against Cook County Commissioner Jesus "Chuy" Garcia.
JUNEAU, Alaska (AP) - Smoking, growing and possessing marijuana becomes legal in America's wildest state Tuesday, thanks to a voter initiative aimed at clearing away 40 years of conflicting laws and court rulings.