Jon Jackson is a News Editor at Newsweek based in New York. His focus is on reporting on the Ukraine and Russia war. Jon previously worked at The Week, the River Journal, Den of Geek and Maxim. He ...

New research shows that the speed of sound on Mars varies considerably by location and temperature. The findings could help scientists understand sounds picked up by Martian rovers, as well as make ...

When legendary pilot Chuck Yeager broke the sound barrier and flew the Bell X-1 past Mach 1 in 1947, it was the greatest aviation milestone ever achieved at that time. These days, however, reaching ...

Scientists from the CMS collaboration at CERN have measured the speed of sound in the quark-gluon plasmas with record precision, a key step to understanding how matter behaved in the very early ...

MILAN (AP) — Extreme athlete Felix Baumgartner, the first skydiver to fall faster than the speed of sound during a 24-mile leap through the stratosphere more than a decade ago, died in a crash ...

MILAN — Extreme athlete Felix Baumgartner, the first skydiver to fall faster than the speed of sound during a 24-mile leap through the stratosphere more than a decade ago, was killed in a crash ...