Sunspot AR3186 erupted with an X1-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple ...

On November 16, 1974, humans sent their first message to the stars in an attempt to contact extraterrestrials. They did this ...

This advertisement has not loaded yet, but your article continues below. Images of the tests showed what appeared to be a BMW sedan being destroyed and old models of tanks being blown up More than ...

Retired U.S. Army colonels debate at Dole Institute of Politics the idea of reinstating the military draft — a controversial ...