Boom Supersonic announced that it could fly faster than the speed of sound without a sonic boom. Elon Musk backed the CEO's calls for regulatory changes to allow supersonic flights over land. A change ...

Since the last Concorde touched down for the final time in 2003, commercial aviation has operated at a curious standstill.

Today, many military aircraft can break the sound barrier to enter supersonic flight. Certain commercial models can as well, including the Concorde, which is famous for its record-breaking flights. As ...