Global coral bleaching has now hit 84% of ocean's reefs in biggest-ever event
A green comet likely is breaking apart and won't be visible to the naked eye
Instagram tries using AI to determine if teens are pretending to be adults
Google to face off with US government in attempt to break up company in search monopoly case
Big Tech's "Magnificent Seven" heads into earnings season reeling from Trump turbulence
No sweat: Humanoid robots run Chinese half-marathon alongside flesh-and-blood runners
Where do whale sharks mate? The search to learn where the magic happens for the world's biggest fish
The US has a single rare earths mine. Chinese export limits are energizing a push for more