来自MSN2 个月
Why sonic booms from the most powerful rocket ever built have some scientists worried
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A SpaceX Super ...
New Scientist28 天
How the XB-1 aircraft went supersonic without a sonic boom
When the experimental XB-1 aircraft broke the sound barrier three times during its first supersonic flight on 28 January, it did not produce a sonic boom audible from the ground, according to US ...
Space.com27 天
Boom Supersonic's XB-1 jet breaks sound barrier 3 times on final test flight (video, photos)
None of the three sonic booms generated by the XB-1 on Monday were audible from the ground, which helps to explain why Boom is so confident that supersonic passenger flight can come back.