Residents of the U.S. had the opportunity to experience a rare occurrence on August 21, 2017: a total solar eclipse was visible across the width of the country, something that had not occurred in nearly 100 years. To encourage learning around this spectacular event, we supported the Space Science Institute’s National Center for Interactive Learning and StarNet to distribute two million solar eclipse viewing glasses, and accompanying educational materials, through a network of more than 7,000 public libraries across the nation.