Mark Rober, a former NASA engineer turned YouTube sensation, has built an impressive career combining science, creativity, and entertainment. Known for his viral videos on innovative gadgets and science experiments, Rober has gained millions of followers and significant brand partnerships. As of 2025, Mark Rober's net worth is estimated to be around $8 to $10 million. His income sources include YouTube ad revenue, sponsorships, merchandise sales, and speaking engagements. Mark’s journey from designing spacecraft at NASA to educating and entertaining audiences online showcases how passion and knowledge can lead to remarkable success in the digital world.