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Aurora Flight Sciences is working on technology that could allow the military to use unmanned helicopters to supply its troops.

Depression has increased among teenagers in recent years, and a new study confirms that the troubling trend is more prominent among girls than boys.

Donald Trump is expected to name Republican Party Chairman Reince Priebus his new chief of staff, placing the longtime GOP operative in one of the most powerful positions in the White House, according to two sources familiar with the decision.

On "Last Week Tonight," John Oliver dedicated his entire season finale to discussing the result of the presidential election.

For more than 28 hours, CNN senior international correspondent Arwa Damon and photojournalist Brice Laine were with Iraqi special forces when their convoy came under attack multiple times.

Cows in New Zealand went viral on Twitter after being stranded amid collapsed earth from the 7.8 magnitude earthquake.

China's leader has spoken to US President-elect Donald Trump to congratulate him on his stunning election victory.

President-elect Donald Trump said he's "fine" with same-sex marriage remaining legal across the country, and wouldn't appoint Supreme Court judges with the goal of reversing that ruling. He also pledged to appoint judges who oppose abortion rights.

Welcome to Donald Trump's America.

Are you a woman who's worried about what life under President Donald Trump could possibly mean for access to birth control or abortion services?

Former White House chief of staff Bill Daley said Monday that President-elect Donald Trump should take care not to let the combative style from the campaign derail his priorities while leading the nation.

"When was the last time you heard from Arwa or Brice?" I asked.

Europe's rapidly expanding -- and increasingly frightening -- radical right is looking to unspool a similar game plan to the one Donald Trump used to ride to power in the US. The moderate, but rapidly shrinking, center on both sides of the Atlantic had better watch out.

After years of declining use of the death penalty across the United States and declining public support for capital punishment, last week's election gave hope to death penalty proponents. The results of balloting in California, Oklahoma and Nebraska as well as the election of Donald Trump seem to foretell a comeback of capital punishment.

Just last week, five more states voted to legalize recreational marijuana, but users may want to be cautious. A study released Sunday suggests that marijuana use can weaken heart muscles, particularly in young men. The study was presented at the annual scientific conference of the American Heart Association in New Orleans.

US Customs and Border Protection is sending 150 extra agents to the Rio Grande Valley in South Texas as authorities report a surge in the number of undocumented children and families trying to cross into the United States from Mexico, the agency said Saturday.

Computer programmer and Wikileaks founder Julian Assange has been living in the Ecuadorean embassy in London since 2012 as he tries to dodge an international arrest warrant.

A powerful 7.4-magnitude earthquake rocked New Zealand's South Island on Sunday, according to the US Geological Survey. The quake struck at a shallow depth of 10 kilometers (6.2 miles), the USGS said. No tsunami warning has been issued.

The Trump administration scored its first legislative victory months before taking office when congressional leaders said they would not now be taking up ratification of a massive trade deal at the center of President Barack Obama's foreign policy legacy.

One of China's first female fighter pilots and a member of the country's Air Force Aerobatics Team was killed in a training accident over the weekend, according to Chinese state-run media.