The new defense secretary faced intense questioning about past drinking habits during his Senate confirmation hearing.

The US Army's early attempt to create an armored vehicle fell short. See images of the flawed but influential Holt hybrid ...

Shark Tank investor Kevin O'Leary took to Instagram to talk about physical appearance and health. Labeling the video, Kevin ...

The incident underscores the proliferation of this particular threat on the battlefield but also points to the effectiveness ...

A small shark swimming around a Louisiana aquarium holds a mystery in its DNA. Yoko the swell shark hatched from an egg that ...