Like most armed forces across the world, the U.S. military uses the 24-hour clock. But why does military time exist, and when ...

A new method uses helium droplets combined with ultrashort laser pulses to trigger chemical reactions in a controlled way.

Using gravitational microlensing, scientists have discovered a rare, large planet at the edge of the Milky Way. The planet is ...

July 14-16 gathering to create recommendations for policymakers and leaders to reduce the threat of nuclear war ...

Space agencies have been asked to establish a "Moon-centric time reference system" by the end of 2026, said The Guardian, ...

The NPT-based nonproliferation regime has often worked best by giving countries time and incentives to reconsider fateful ...