Researchers who dove hundreds of times into a sinkhole beneath the brown murky waters of Florida's Aucilla River have retrieved some of the oldest evidence of human presence in the Americas including stone tools apparently used to butcher a mastodon.
WASHINGTON/NEW YORK - U.S. Democratic presidential candidate Bernie Sanders defeated Hillary Clinton on Tuesday in West Virginia's primary, winning over voters deeply skeptical about the economy and signaling the difficulty Clinton may have in industrial states in the general election.
Donald Trump said on Sunday that taxes for the wealthy should go up but that his tax plans would likely be renegotiated with Congress should he win the U.S. presidency.
The multi-state Powerball jackpot has grown to $415 million ahead of Saturday evening's drawing, making it the ninth-highest U.S. lottery prize in history, officials said.
The voyage data recorder from the ship El Faro, which sank in October during a hurricane off the Bahamas killing all 33 crew onboard, was located on Tuesday in 15,000 feet (4,600 metres) of water, the U.S. National Transportation Safety Board said.
Ukraine held memorial services on Tuesday to mark the 30th anniversary of the Chornobyl nuclear disaster which permanently poisoned swathes of eastern Europe and highlighted the shortcomings of the secretive Soviet system.
WASHINGTON - Republican White House rivals Ted Cruz and John Kasich announced a deal on Sunday to stay out of each other's way in some upcoming state primaries in hopes of blocking front-runner Donald Trump from winning the party's presidential nomination.
Democratic front-runner Hillary Clinton and rival Bernie Sanders challenged each other's judgment and experience in a fiercely combative U.S. presidential debate ahead of Tuesday's crucial nominating contest in New York.
Eleven U.S. states sued the Obama administration on Wednesday, seeking to overturn a directive from the federal government this month that public schools should allow transgender students to use the bathroom matching their gender identity.