USA Gymnastics has appointed former gymnast and NBA executive Li Li Leung as its president and chief executive officer, the embattled organization announced Tuesday.

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

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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.

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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.

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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.

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

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

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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.

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

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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.

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

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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?

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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.

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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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