The Denver Museum of Nature & Science announced today that George Sparks, the Museum’s president & CEO for more than 21 years, will retire at the end of 2026 after a remarkable career defined by innovation and community impact. Under his leadership, the Museum has grown into one of the most respected nature and science institutions in the country.

Since joining the Museum in 2004, George has championed a mission to ignite a passion for discovery in millions of visitors across Colorado and beyond. He has expanded the Museum’s reach beyond its walls — deepening its role as a trusted civic and scientific leader while ensuring that curiosity and connection remain accessible to all.

From reimagined galleries and immersive learning spaces to community partnerships and outreach that meet people where they are, George has championed innovation at every turn. He also founded the Institute for Science & Policy, a pioneering initiative that brings science, policy and community dialogue together to address Colorado’s most pressing challenges.

Through groundbreaking research — including the “Snowmastodon Project,” Corral Bluffs and “Teen Rex,” and discoveries spanning genomics and ancient cultures — George reinforced the Museum’s dual role as both educator and investigator. Under his guidance, the Museum has welcomed more than 2 million visitors annually, expanded its regional impact and remained a place where curiosity, discovery and belonging thrive for all.

“George’s leadership has left an indelible mark on the Denver Museum of Nature & Science,” said Jena Hausmann, Chair of the Museum's Board of Trustees. “His efforts have set the Museum on a trajectory of growth and belonging, and he has created a culture of curiosity and collaboration that has transformed this institution into a beloved community resource. We are incredibly grateful for his dedication and visionary leadership and look forward to continuing to work with him as an advisor.”

The Museum’s Board of Trustees will launch a thoughtful and comprehensive national search for George’s successor. The process aims to identify a leader who will build on the organization’s legacy of excellence and guide the Museum into its next era of growth and discovery. George will remain in his role until the new president & CEO is selected and fully onboarded, ensuring continuity and stability throughout the transition.

“Serving as president & CEO of the Denver Museum of Nature & Science has been the honor of a lifetime,” George said. “I am endlessly proud of the incredible work we’ve done together to inspire curiosity, creativity and exploration. The Museum has always been about the people — our staff, volunteers, members, donors and community. Each of you has made this place what it is today. While this is a bittersweet moment for me, I’m excited to see how the Museum continues to evolve and thrive under new leadership.”