ALBUQUERQUE, N.M. — The explosive PETN has been around for a century and is used by everyone from miners to the military, but it took new research by Sandia National Laboratories to begin to discover ...

Show me the facts Explain it like I’m 5 Give me a lighthearted recap A collection of explosive clips and funny fails from shooters.

BERLIN—Germany narrowly avoided a suspected Islamist attack this month after a 12-year-old boy twice planted an explosive device at a Christmas market that failed to detonate, German officials said ...