NASA's record-breaking New Horizons spacecraft has awoken from a 321-day hibernation in "good health" as it resumes ...

"The real challenge is that this is still an area that we don't completely understand. We get surprises now and again." ...

Mysterious high-speed "bullets"—clumps of possibly oxygen-rich gas traveling at up to 20 million miles per hour—have been ...

Emergency physicians say the growing popularity of high-speed electric bikes is fueling a rise in serious pediatric injuries.

Paige Bueckers scored 25 points in a Wings victory, but a slow-motion video of her frightening fourth-quarter fall left ...