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.
Thermoelectric generators probably won’t eliminate the charger for your Apple Watch, but for smaller, screenless wearables, the heat constantly escaping from your skin could fundamentally change how we power our devices.
Built in 1974, the Stargazer aircraft is the last Lockheed L-1011 that's still flying.
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 
