There are nerds and then there are the researchers who work at Google’s Quantum AI lab. Marissa Giustina, a doctor of experimental quantum physics, is both. This year, she made Fortune’s 40 Under 40 list for her work building a quantum computer that can do – in just over three minutes – calculations that would take any other computer 10,000 years to complete. Google’s CEO likened this accomplishment to “touching the edge of space.”