XS-1 Phantom Express

DARPA’s futuristic spaceplane is set to become a reality, and it will be built by Boeing’s Phantom Works division. Previously known as the Experimental Spaceplane (XS-1), the Phantom Express will be an unmanned, autonomous, hypersonic, reusable spaceplane that can deliver small payloads of 3,000-pounds to low Earth orbit. The spacecraft will launch vertically utilizing an Aerojet Rocketdyne AR-22 engine that is fueled with liquid oxygen and liquid hydrogen. “Phantom Express is designed to disrupt and transform the satellite launch process as we know it today, creating a new, on-demand space-launch capability that can be achieved more affordably and with less risk,” said Darryl Davis, president of Boeing Phantom Works. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos today, including one that shows why you should never pour grease down a drain.

5. Why You Should Never Pour Grease Down the Drain

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3. Statistical Paradoxes

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1. The Fidget Spinner That Shouldn’t Exist

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