Daniel Whiteson is a particle physicist at UC Irvine and an active researcher at CERN's Large Hadron Collider — the largest machine ever built — where 5,000 scientists are using high-energy collisions to read the universe's secret menu. He co-hosts the show Daniel and Kelly's Extraordinary Universe, co-created an award-winning science show for preschoolers, and recently wrote a book asking whether aliens would even recognize our physics at all. His work sits at the collision point of experimental science, philosophy, and the biggest unanswered questions in physics — what everything is made of, why gravity is so weak, and whether the universe has a bottom.