During the second supersonic flight of the XB-1 technology demonstrator today, the jet exceeded Mach 1 three times without a boom being detected by microphones on the desert floor below.

When the experimental XB-1 aircraft achieved supersonic speeds on a test flight, it did not create a disruptive sonic boom – ...

“XB-1 broke the sound barrier three times during its first supersonic flight—without an audible boom. This confirms what ...

A new rumor suggests Sega could be developing a new Sonic the Hedgehog fighting game, prompting excitement among the ...

During the demonstration flight on January 28, 2025, the XB-1 broke the sound barrier three times, but not one of those ...