来自MSN5 天
World's fastest plane could have gone from London to New York in under an hour
The X-15 hypersonic research program was a joint venture between Nasa and the US Air Force - and it led to the creation of ...
World's fastest plane could have reached New York from London in 45 minutes
For nearly a decade, the X-15 - the fastest flying manned aircraft ever made - completed 199 missions at record breaking ...
Task & Purpose2 年
Space Force’s secretive X-37B plane has spent more than 900 days in orbit
By Nicholas Slayton Posted on Nov 6, 2022 The U.S. military’s uncrewed space plane has set a record for its longest flight in orbit. The X-37B craft has now been circling the earth for 902 days ...
Live Science28 天
Top-secret X-37B space plane has been in orbit for more than 1 year
That U.S. Space Force X-37B Orbital Test Vehicle (OTV-7 ... was placed in an orbit higher than any of the earlier space plane missions – into a highly elliptical high Earth orbit.