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Mark Rober, a former NASA engineer turned YouTube sensation, has built an impressive career blending science and entertainment. As of 2025, his net worth is estimated to be between $25 million and $50 million, reflecting his success across multiple ventures. Rober's engaging science experiments and innovative projects have garnered him over 66 million subscribers on YouTube. Beyond ad revenue, he earns through brand partnerships, merchandise sales, and his STEM-focused company, CrunchLabs. His journey from contributing to NASA's Mars Curiosity rover to becoming a leading figure in online educa
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