Mark Rober is a famous YouTube star, inventor, and a former NASA engineer. He runs the self-titled YouTube channel, Mark Rober, which has over 19.5 million subscribers. He is popular for creating Science videos, do-it-yourself gadgets, and other interesting Science-tech content. Mark Rober was also the founder of Digital Dudz, a costume company dedicated to creating unique Halloween costumes. He has appeared on the famous American talk show Jimmy Kimmel Live. Mark Rober is active on Instagram under the name markrober and has over 651k followers.
