2016年4月22日 星期五

Sometimes NASA Goes Too Far With The Whole Green Thing

FYI @NASA_SLS You burn tons of polybutadiene acrylonitrile & Ammonium perchlorate composite Not very enviro-friendly http://ift.tt/1WKWQhH NASA Watch (@NASAWatch) April 22, 2016 Happy #EarthDay! @NASA works hard for our home planet and beyond, including enviro-friendly improvements to #SLS. http://pic.twitter.com/ajUFMW7P4t—...

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