A new algorithm could speed up detection of weapons-grade nuclear material at national borders to protect against nuclear terrorism, researchers report.

A new method can turn bricks into 3D "cameras" to help find clues in the hunt for weapons-grade nuclear materials.

In states with gun licensing laws that require an in-person application and giving fingerprints, there are fewer fatal mass shootings.

Gun owners aren't sleeping better or feeling happier than others, according to a study that contradicts claims that guns provide a sense of safety and empowerment.

A nuclear war that cooled Earth down could be dire for the world's oceans, particularly in terms of worsening ocean acidification.

New research on the overlap between domestic violence and mass shootings suggests firearm restrictions could help prevent these tragedies.

New research marks "a step forward in designing superior body armor that will safeguard against even more powerful firearms during combat."

A new system can locate shooters through video and audio from 3 smartphones, which could help protect human rights workers and journalists.

A self-administered radiation blood test would take some burden off medical systems after a nuclear attack or disaster.

The mismatch between child firearm deaths and funding to investigate the issue may help explain why such deaths among young people have climbed, say researchers.