To study some of the tiniest particles in the universe, an international band of physicists is building a massive instrument to look for signs of particles predicted to be fundamental to the workings of the universe.

The search for dark matter called spin-dependent WIMPS is on — in an underground lab in Canada

Nuclear power figures prominently in our country's energy portfolio and is essential to our economic and environmental security.

Discovery in action. These words describe what we do at PNNL. For more than 50 years, we have advanced the frontiers of science and engineering in the service of our nation and the the world.

Here at the Department of Energy's Pacific Northwest National Laboratory, much of our physics research focuses on fundamental scientific discovery and national security.