Astronomers Detect a Mysterious Radio Signal Coming From the Direction of a Dead Star—And It Repeats Every 22 Minutes
A long-period radio transient has been discovered 4,000 light-years away, and its behavior does not match any known astr...
Postal Workers in Switzerland Are Now Delivering Mail by Drone—And the Drones Wear Tiny Uniforms
Swiss Post has launched a regular drone delivery service for urgent medical supplies, but the public's attention has focused on the custom-made postal jackets worn by the unmanned ...