The New Orleans truck attacker built two bombs using what investigators believe was an explosive so powerful that they could have sprayed shrapnel hundreds of yards and potentially killed or ...

As authorities sift through debris at a Palm Springs fertility clinic, investigators are looking at how bombing suspect Guy Edward Bartkus learned to build a bomb and where he acquired the parts.

When high explosives are subjected to sudden shock waves, such as from an impact or detonation, tiny regions of intense heat—called hot spots—form at microstructural defects such as pores.

The New Orleans truck attacker built two bombs using what investigators believe was an explosive so powerful that they could have sprayed shrapnel hundreds of yards and potentially killed or ...