Stephen Chu

Stephen Chu is a physicist and former U.S. Secretary of Energy who won the Nobel Prize in Physics in 1997 for his research on how to cool and trap atoms using laser beams. His work helped advance atomic physics and led to innovations in precision measurement. As Secretary of Energy under President Obama, he promoted clean energy technologies and increased focus on renewable energy sources like solar and wind. Chu’s contributions bridge fundamental scientific discovery and practical energy solutions, making him a key figure in both physics and energy policy.