The NEXT-C ion propulsion engine has successfully completed a Critical Design Review conducted by NASA and is planned for use on the agency’s 2021 DART (Double Asteroid Redirection Test) mission. With the CDR finished, the next step in the process should be the production of actual flight units.

NEXT-C stands for NASA’s Evolutionary Xenon Thruster-Commercial and was developed by the space agency and commercialized by Aerojet Rocketdyne.

“Serving as the primary propulsion source for DART, NEXT-C will establish a precedent for future use of electric propulsion to enable ambitious future science missions,” said Eileen Drake, CEO and President of Aerojet Rocketdyne via a company-issued release. “Electric propulsion reduces overall mission cost without sacrificing reliability or mission success.”

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A new look at the moon via 4-k video fly-throughs from LRO data and imaging. The finale is a drop down to Taurus-Littrow to see a highly magnified image of the…Apollo 17 LM descent stage. Stunning! #NASA #Apollo #LunarReconnaissanceOrbiter #moon https://www.space.com/40274-nasa-moon-in-4k-video-tour.html…

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Images from NASA’s Lunar Reconnaissance Orbiter (LRO) are not only helping planners with future human missions to the moon, but they are also revealing new information about the moon’s evolution and structure.

A new NASA video, posted on YouTube, features more than half a dozen locations of interest in stunning 4K resolution, much of it courtesy of LRO data. NASA also highlighted the individual sites in a Tumblr post that delves deeper into their geology, morphology and significance.

LRO has been circling the moon since 2009 and has made a range of discoveries at Earth’s closest large celestial neighbor. [More Amazing Moon Photos from NASA’s LRO].