Boeing Electronic Dynamic Devices (www.boeing.com) has won three NASA contracts for advanced xenon ion propulsion technologies. The projects include the NASA evolutionary xenon thruster system, the carbon-based ion optics project, and the high-power electric propulsion project. Designs developed and demonstrated in these programs in the next two and a half years will become the critical technologies in the development of very high power (100 to 250 kW) nuclear electric propulsion systems for future deep space missions.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
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