With their population estimated at roughly 97 percent of historical levels, blue whales off the West Coast are being called a conservation success story.
Citing a broad threat posed by the Islamic State, President Obama said Sunday that he will deliver a national address Wednesday to discuss the U.S. approach to the group.
The vaccine was developed by researchers at the National Institutes of Health and at Okairos, a Swiss-based biotech company owned by the British drug company GlaxoSmithKline.
The U.S. Open win ties Serena Williams with Chris Evert and Martina Navratilova for fourth on the all-time list of Grand Slam winners.
For the first time, a poll shows the push to break away from the United Kingdom now has the edge over the "unity" vote in Scotland.
Preparing for its initial public offering, e-commerce company Alibaba estimates its stock will sell for $60 to $66 a share. The retailing giant will be listed on the New York Stock Exchange.
U.S. fighters and bombers carried out the attack in western Iraq's Anbar Province, trying to protect a key piece of Iraq's infrastructure.
Increased Mexican patrols along that country's southern border may be one factor in the drop in numbers seen by the U.S. Some migrants appear to be giving up and staying in southern Mexico.
New York Gov. Andrew Cuomo was expected to cruise to victory in next Tuesday's Democratic primary. But he faces a surprisingly vigorous challenge from the left.
Residents of the Ukrainian capital say the conflict has been devastating, yet has also helped forge a real sense of Ukrainian identity.