A brutal one-day drop has investors asking whether the memory rally has finally run out of room.

Boom is trying to build a Supersonic jet that could cross the Atlantic in 3.5 hours. Last December, it decided to make its own engine after engine manufacturers refused to help. Now its Symphony ...

It sounded like an explosion. For some, it felt like one. Just after 2 p.m. on May 30, residents across Massachusetts—and well beyond—were jolted by a sudden, thunderous boom that rattled homes and ...

After 10 months of flight testing, Boom Supersonic has announced that it will make the first supersonic flight of its XB-1 prototype tomorrow at 7:45 am PST in the skies over the Mojave Desert in ...

Boom Supersonic has made great strides in recent years toward fulfilling its ambition to get its Overture supersonic airliner off the ground. The problem is that faster-than-sound aircraft aren't ...