A scientist captured video of a close encounter she shared with a killer whale in Antarctica. CNN's John Vause has more.

An LGBT group has cut ties with tennis great Martina Navratilova after she said it was a form of "cheating" for transgender women to be allowed to compete in women's sport.

1. Fed minutes: US stock futures were little changed as investors prepare for the release of minutes from the Federal Reserve's January meeting at 2 p.m. ET.

Attorneys for a Kentucky high school student who was at the center of a viral video controversy are suing the Washington Post, seeking $250 million in damages.

The biggest and brightest supermoon of the year brightened the skies on Tuesday.

Vermont Sen. Bernie Sanders is hoping the second time is the charm in seeking the Democratic nomination for the White House.

A small brown rat which lived on a tiny island off northern Australia is the world's first mammal known to have become extinct due to "human-induced climate change," the government says.

Mandy Moore talks about her relationship with ex-husband Ryan Adams on Marc Maron's "WTF" podcast.

In the span of two days, an Arizona man got stuck in quicksand for hours and then had to spend the night coping with a winter storm before being rescued. HLN's Robin Meade has more.

Taiwan President Tsai Ing-wen has sent out a warning to Asia in the face of mounting aggression from Beijing.

How many will be corrupted, plead guilty, endure convictions, or be sent to prison before the legal and political systems end the slow-motion national tragedy that is the Trump administration?

Uranium ore stored at the Grand Canyon National Park museum may have exposed visitors and workers to elevated levels of radiation, according to the park's safety, health and wellness manager.

President Donald Trump's craving for loyalty from his top law enforcement officials and alleged efforts to topple those whom he perceives as threats could be leading him into deep trouble -- and even put his presidency in peril.

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