In a new study, researchers demonstrate long-term, non-invasive monitoring of blood sodium levels using a system that combines optoacoustic detection with terahertz spectroscopy. The paper is ...

In a new study, researchers demonstrated long-term, non-invasive monitoring of blood sodium levels using a system that combines ...

Boom Supersonic’s XB-1 aircraft broke the sound barrier for the first time ever on Tuesday, ushering in a new era of supersonic flight. The jet exceeded Mach 1 after taking off from the Mojave ...

Chuck Yeager, the first pilot to break the sound barrier in 1947, poses Sept. 4, 1985, ... forming a shock wave “much like a boat creates a wake in water,” according to NASA.

Tuesday’s flight happened in the same airspace where in 1947 Charles “Chuck” Yeager became the first person to break the sound barrier, piloting an orange, bullet-shaped Bell X-1 rocket plane.