Videos of a ball of fire from space shooting over Mexico and dissolving in a burst of light struck awe across the capital ...

The Defense Department will soon brief the president on a set of possible options for the planned missile defense system.

Health Secretary Robert F. Kennedy Jr. said that the agency will announce a series of studies aimed at identifying “environmental toxins” he claims are responsible for a dramatic rise in autism rates ...

An alert issued by Florida State University urged students and staff to take shelter after an active shooting was reported ...

The tracker focuses on the segment of planned school shootings where an active shooter, with intent to harm, injures or kills ...

Cell phone video shows people running on a street near Florida State University where an active shooter has been reported.