When terrorists attacked several locations in Paris last Friday night — including the Stade de France stadium where a friendly soccer match was taking place — U.S. venues immediately took notice.
Astronauts on the International Space Station inserted an effervescent tablet in a floating ball of water to test a new device that can record four times the resolution of a normal high-definition camera.
A speed-camera program in a large community near Washington, D.C., has led to long-term changes in driver behavior and substantial reductions in deaths and injuries.