Edward Blucher studies an elusive particle called the neutrino at the Double Chooz experiment in France. Blucher formerly was co-spokesman of the Kaons at the Tevatron collaboration at Fermi National Accelerator Laboratory. In 1999 the collaboration made the most definitive observation to date of the unbalanced decay of subatomic matter and anti-matter. This process, called direct charge-parity violation, may hold the key to understanding the very existence of matter in the universe. In 2004, Blucher and his colleagues solved a 20-year-old puzzle regarding how some quarks interact in the beta decay of particles, a common form of radioactivity. Their work has helped to reinforce the scientific understanding of the weak nuclear force, one of the four fundamental forces of nature.