The system that spawned Monday's massive, deadly tornado in Oklahoma, in addition to several twisters Sunday, isn't over yet. Fifty-three million Americans could face severe weather Tuesday.

An American lawyer based in Moscow who used to work at the U.S. Embassy there was expelled from Russia two weeks ago, his law firm said on Monday.

A series of deadly storms that pummeled Arkansas, Missouri and other states this week reminds us that tornado season is upon us once again.

Tornadoes destroyed homes and tossed trees around like toothpicks as powerful storms ripped through Oklahoma and the Midwest on Sunday and Monday.

A tornado is a funnel-shaped cloud that forms under thunderclouds and contains rapidly rotating air.

Tornadoes rip across the U.S. Midwest, sectarian violence strikes Iraq, Yahoo buys Tumblr, and some people see red over a shift to Florida's traffic lights.

Sunday's graduation ceremony at Hofstra University was a bittersweet affair marked by a moment of silence for a 21-year-old student killed by a police officer two days ago.

Storm chasers capture dramatic tornadoes in Kansas. At least 4 tornadoes were reported in Kansas.

A firefighter was trapped early Monday in a six-alarm blaze at a Dallas condominium complex, the city's fire department said.

In the wake of its civil rights struggle, Birmingham canceled high school prom for many black teenagers. This weekend, the dance went on for the Class of 1963.

The million-dollar questions have been answered. What are the Powerball numbers, and have any winning tickets been sold?

Five passengers were killed when a church van crashed Monday in Vandalia, Illinois, according to Deputy Shawn Carter with the Fayette County sheriff's office.

Severe weather turned deadly Wednesday night in north Texas. Officials say at least 10 tornadoes touched down, leaving at least six people dead and more than 100 injured in the Dallas-Fort Worth area. If you are looking for missing loved ones, you can call 817-579-2888 to get info from Lake Granbury Hospital.

A 1997 Cadillac plowed into a parade crowd in Virginia, injuring dozens of spectators and leaving others pinned underneath the car.

Aviation fans have already named it Dreamliner 2.0.

A dispute over public prayers at town board meetings will be taken up by the Supreme Court in coming months, another contentious case over the intersection of faith and the public arena.

Meg Urry says loss of the planet-finding Kepler satellite would be huge for NASA, which is furiously trying to fix it--but one way or another, it's a matter of time before we find signs of life on other worlds

Mireille Kibibi's march to the graduation stage at Berry College was tough -- laden with the burdens of war.

Jim Heston, an American guesthouse operator in Cambodia, has lived a life in denim and has the photos to prove it. There were the dungarees he wore as a little boy, the dark bell-bottoms he had on for a hike up Japan's Mount Fuji, and the Levis straight-leg 501 jeans he's stayed with for the past 36 years.

The FBI is mourning the deaths of two special agents killed Friday during a training exercise off the coast of Virginia Beach, Virginia.