PNNL advances the frontiers of knowledge, taking on some of the worlds greatest science and technology challenges. Distinctive strengths in chemistry, earth sciences, and data analytics are the heart of our science mission, laying a foundation for innovations that improve Americas energy resiliency and enhance our national security.We are a national lab with Pacific Northwest roots and global reach. Whether our researchers are unlocking the mysteries of Earths climate, helping modernize the U.S. electric power grid, or safeguarding ports around the world from nuclear smuggling, we accept great challenges for one purpose: to create a world that is safer, cleaner, more prosperous, and more secure. Let us show you what happens when great minds meet great challenges.