Could supersonic air travel make a comeback?
This 34-minute flight, the culmination of 11 previous subsonic ones, took off from Mojave Air and Space Port in California.
WQOW16 小时
Supersonic jets are making a comeback. Here’s what that means for air passengers
American company Boom Supersonic flew faster than the speed of sound with its XB-1 supersonic demonstrator aircraft. It’s now ...