The tiltrotor aircraft caught fire Sunday while taking off from an airport in Mesa, Arizona, during a joint exercise.

In this challenge, a military-style obstacle course tests strength and grit.

As the course progresses, experience and technique begin to make a difference, with each obstacle testing speed, agility, and ...

Helena Smith's status in the ninja warrior world recently received a boost. The 16-year-old from Mount Airy won the World Ninja League championship in the girls head-to-head competition near the end ...