The X-59 is very slender, to make it more aerodynamic. Its designed research speed is Mach 1.4, or an eye-popping 925 miles per hour.
In some ways smart glasses are more legitimate than ever, but in others they feel like one big work in progress.
Turns out, those primal fears aren't as irrational as you'd hope they are.
The Pentagon says F-35s received no new combat upgrades last year, and that attempts to replace old software have stalled.
The guardrails are completely gone.
The potentially hazardous asteroid is on its way for an uncomfortably close flyby of Earth in 2029.
It was a wild year for NASA, and the space agency has the pictures to prove it.
Another view of the plane in its SkunkWorks hangar. Photo: NASA 
