Traditional air forces—built around expensive jets and elite pilots—are being replaced by cheaper, smarter, autonomous systems. This video explores how modern defense is shifting toward drones, ...

A mathematician by training, he acquired a devoted following with songs that set sardonic lyrics to music that was often maddeningly cheerful.

The James Webb Telescope has proven that everything we thought we knew about space might be wrong. Launched just a few years ago, this $10 billion telescope has already revolutionized our ...