Boom Supersonic sans Sonic boom

Boom hopes its breakthrough will allow supersonic flights over land, making US coast-to-coast flights 90 minutes faster.
The scaled-down prototype, nicknamed the "Baby Boom", broke the sound barrier for the first time during a test flight over ...
American company Boom Supersonic just broke the sound barrier with a civilian plane. What exactly is supersonic travel, and ...
United Airlines aims to bring back supersonic travel ... The airline said Thursday that it plans to buy 15 jets from Boom Supersonic with an option for 35 more once the start-up company ...
Boom Supersonic's mission is to make the world ... including orders and pre-orders from American Airlines, United Airlines, and Japan Airlines. Boom is working with Northrop Grumman for ...