The eastern tropical Pacific Ocean is known for its large low-oxygen zones that are increasing in size, putting marine life at risk. New research shows that 15 million years ago, the opposite was true ...

One of the most important metrics on a Fitbit tracker is the Estimated Oxygen Variation—and now that every tracker is fitted with an SpO2 sensor, everyone can take advantage. Blood oxygen may be used ...

Crime News is your destination for true crime stories from around the world, breaking crime news, and information about Oxygen's original true crime shows and documentaries. Sign up for Oxygen Insider ...

Think you know your 4th of July history? You're about to find out. A lot of us learned the highlight reel, the simplified version that skips over the buildup and ...

Investigative journalist Maggie Freleng tries to unravel a slew of unexplored leads, eyewitness discrepancies and missing evidence that have cropped up online regarding Maura Murray's disappearance.