See 7 Supersonic Passenger Planes That Will Connect Cities in One Hour

Supersonic commercial air travel started with Concorde in 1976, but there hasn't been another ultra-high-speed plane since the jet's demise in 2003.

Concorde, Summary, History, & Facts

Boom Supersonic unveils its prototype for a commercial supersonic jet - The Verge

Boom Says It Can Deliver Supersonic Flight Fit For 21st Century Air Travel – AIN

Concorde, Summary, History, & Facts

Aviation in 2017: Supersonic jets and premium economy - BBC News

NASA to develop supersonic plane that can travel from New York to London in 1hr 30mins - Mirror Online

New York-London in 3½ Hours? Supersonic Travel May Be Back - WSJ

New York to London in 90 minutes? NASA exploring passenger jet that could do it - ABC News

New York to London in 1.5 hours? NASA launches plan for supersonic plane almost twice as fast as the Concorde

NASA supersonic plane twice as fast as Concorde

Wind Turned Two Passenger Planes Into Supersonic Planes, Sort Of - The Autopian

A supersonic jet faster than the Concorde will get public design debut in Centennial – The Denver Post

Boom Supersonic unveils design for world's fastest passenger airliner

Boom's Supersonic Mission to Not Go Bust

The Quest to Fly From New York to London in One Hour — Paleofuture