To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Share Embed Share URL Video File Node URL Embed Code <iframe title="MRC TV video player" width="640" height="360" src="https://www.mrctv.org/embed/103501" allowfullscreen></iframe> We'll travel to NASA's tool lab and see the equipment we need to build in this challenging environment, from high tech wrenches and hammers.