During the Space Foundation’s luncheon honoring Piers Sellers, speakers lauded the former astronaut for his tireless work to draw attention to Earth’s changing climate and to seek technological solutions to limit mankind’s impact on the planet.

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Debra Werner is a correspondent for SpaceNews based in San Francisco. Debra earned a bachelor’s degree in communications from the University of California, Berkeley, and a master’s degree in Journalism from Northwestern University. She is a recipient...