RAIBO2's official marathon time was 4 hours, 19 minutes, and 52 seconds.

New fuel-economy standards, which President Trump said he finalized Saturday, would kill a federal effort to speed the transition to electric vehicles.

Gravity batteries aren’t exactly a new idea. You can store energy by lifting something heavy, converting kinetic energy into potential energy. To get it back, you let the mass fall and conver…

ALT: a young man with long blonde hair is looking at the camera and saying `` as you wish '' .

A 24-year-old woman who says she is "addicted" to saving money is opening up about how her mindset around money has shifted over the years.

In the 1920s, Radithor promised to cure everything from wrinkles to leukemia, but its unintended results were deadly.