Day four of CES 2016 was less about consumer products, and more about pie-in-the sky ideas. A company that one day plans to mine asteroids 3D-printed an object out of asteroid dust, just to show how humans might build objects on remote planets. We also got our first look at the KATIA robot arm, a surprisingly affordable device that could help you do light manufacturing or, say, build Lego. Finally, we got a look at two smartphones that use Google's vaunted Project Tango tech that will let you 3D scan all the things. For those and the other stories, watch our Editor-in-Chief Michael Gorman's take on the day (above) or check the gallery below.