Boom, the startup developing a new generation of supersonic aircraft, has achieved a major milestone after its test plane broke the sound barrier for the first time. The XB-1 “Baby Boom” piloted by ...

Scientists have captured direct images of heat behaving like sound — an elusive phenomenon called 'second sound' — for the very first time. Imaged within an exotic superfluid state of cold lithium-6 ...

Last week, researchers from Oregon State University documented two shark species in Puget Sound for the first time. They found a broadnose sevengill shark and the critically endangered tope shark. The ...