Pieces from the Apollo missions’ rockets languished on the ocean floor for decades. After they were retrieved, NIST metallurgists helped preserve some of them f

Pieces from the Apollo missions’ rockets languished on the ocean floor for decades. After they were retrieved, NIST metallurgists helped preserve some of them for history. Learn more: #NIST125 Photo Credit: NASA [↧](https://t.co/njY4cg1wJr)