When an object in space appears to be racing at nineteen times the speed of sound, it instantly jumps from routine data point to global headline. The claim that NASA tracked such a hyperfast visitor ...

Space junk and meteoroids are falling to Earth every year, posing a growing risk as they re-enter the atmosphere at high speeds. Researchers are using infrasound sensors to track these objects, ...

Sound, when emitted by a source — whether a person or a piece of equipment — propagates in all directions through space, being reflected, absorbed, transmitted, or diffracted as it encounters surfaces ...