As a mechanical engineer at NASA’s Jet Propulsion Lab, Kobie Boykins has the awesome privilege of building stuff, only to blast it millions of miles away into space at thousands of miles an hour.

Kobie goes into work every day with the enviable job of revealing the remarkable mysteries of our universe, and as part of that mission, he’s had a hand in building all of the rovers that have landed on Mars: Sojourner, Spirit, Opportunity, and Curiosity. Watch his video…