The Republican front-runner stopped in one of the most liberal states in the country for a raucous rally.
The U.S. had 10 weather events in 2015 that cost $1 billion or more in damage, with December the warmest and wettest month on record. Climate scientists blame a warming climate and strong El Nino.
From concussions to domestic violence, a current pro football player tells all about what's it really like on the gridiron and beyond in NFL Confidential: True Confessions from the Gutter of Football.
South Korea made the announcement after Pyongyang claimed it tested a hydrogen bomb.
At least three genes that predispose some of us to hay fever and other allergies came from Neanderthal DNA, scientists say. The genes likely boosted the immunity of our early ancestors.
Since October, a natural gas storage well near Los Angeles has been spewing hundreds of tons of methane gas each day. The leak isn't expected to be fixed for months.
Robin Wright, who writes about Saudi Arabia and Iran in the current issue of The New Yorker, says upcoming Syrian peace talks have been compromised by the execution of an outspoken Shiite cleric.
Thursday was shaping up to be another tumultuous day in the financial markets. Stock prices were falling after a big selloff in Asia and Europe. The trouble seems to have started in China.
An advisory panel had recommended telling Americans to cut back on red and processed meats. But that controversial advice is missing from the update to the government's official nutrition guidelines.
Scientists are convening to talk about whether experiments that make some viruses more contagious in order to advance understanding of potential outbreaks are worth the risk of creating one.