From video description:
“Stargazer is Earth’s first hypersonic, reusable aircraft. No one has ever built an engine that makes one-hour global transport cost-effective. Until now.
Stargazer will take off from a primary airport with jet engines, then when away from city-center, our rocket engine will propel passengers gently to 170,000 feet and Mach 9, crossing 5000 miles in 1 hour. San Francisco to Japan. Houston To London. All with a 2-hour turn-around.”