Post by sherlew99 on Oct 29, 2016 20:17:31 GMT -6 Interesting EngineeringOctober 29, 2016Shelby Rogers How do Astronauts Weld in Space? On Earth, metals need to be heated past their melting points in order to weld together. But how does that work in space where there isn’t oxygen to facilitate a flame?Click here for the rest of the article.