NASA engineers began assembling the X-59 Quiet SuperSonic Technology (QueSST), a supersonic jet designed to produce a quieter sonic boom. If tests are successful, it could help end a ban on supersonic travel over land.
Researchers completed the first petrological and chemical analysis of a Stonehenge megalith since the 19th century. Studies in the 20th century have focused on debris from Stonehenge, rather than specific stones.
Researchers at the National Institute of Standards and Technology created a quantum sensor made of beryllium ions that could help detect dark matter. The sensor is 10 times more sensitive to electric fields than comparable existing sensors.