Mark Rober
Mark Rober, a former NASA engineer who spent seven years working on the Mars Rover, is the host and creator of the largest science, education, and design YouTube channel in the World. He is Jimmy Kimmel’s go to science guy and is currently working together with Jimmy on a science-based prank show that will soon premiere on the Discovery channel. In his spare time, Mark spearheaded a global ocean clean-up initiative called “Team Seas”, which raised over 30 million dollars in under three months.