Obituary: Peter B. Lyons Feb. 23, 1943 – April 29, 2021 Feb. 23, 1943 – April 29, 2021 Peter B. Lyons passed away in Golden, Colorado on Friday, April 29, 2021, following a yearlong battle with cancer. Pete’s partner Peggy Lyon-Bull and his sons Daniel, David and Michael were able to join him at his side in his final hours. He leaves behind a legacy of dedication—to his family, to the scientific community and to the nation for a life spent in public service. Pete was born to Leland and Rita (nee Horblit) Lyons in Hammond Indiana, in 1943. Although born in the midwest, he spent his childhood in Boulder City, Nevada, just outside of Las Vegas, Nevada. During his time in Nevada, he developed a passion for the geology and topography of the American southwest. He was a standout student at the small high school and also excelled as a tennis player in the then sparsely populated state. He went on to become Nevada state champion in tennis while in high school. He later joked that this wasn’t a major accomplishment, given the lack of people to play against. The highlight of his tennis career was playing in a national tournament against future Wimbledon champion Arthur Ashe. Pete noted that Ashe dispensed with him fairly quickly.