NASA is working with its partners to enable new choices for high-speed air travel, starting with commercial supersonic flight over land through the Quesst mission and the experimental X-59 airplane. Even faster flight some day through hypersonic technology is not impossible. Keep an eye on this page for updates about these topics.
NASA's Quesst mission is to lead a government-industry team to collect data that could make commercial supersonic flight over land possible, dramatically reducing air travel time in the United States or anywhere in the world. The centerpiece of the mission is the X-59 aircraft.
Here are links to three e-books that are free to download. Each offer a different perspective on the history of supersonic research by NASA and its predecessor, the National Advisory Committee for Aeronautics.
Quieting the Boom
The Shaped Sonic Boom Demonstrator and the Quest for Quiet Supersonic Flight