Despite claims of Mach 2.54, pilots report that the fastest speeds achieved in practice are Mach 2.25–2.3 in brand-new ...

Humankind was once determined to break the sound barrier, as it was considered the ultimate achievement in speed. But our technology didn't stop there, as we've built experimental vehicles that can ...

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 ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

The Boeing 737 has been around since the 1960s and is now in its fourth generation, but as with other commercial jetliners it takes more than a single number to pin down the 737's top speed. When an ...