The COSI Science Festival, happening April 29 – May 2, 2026, is a community-wide celebration of curiosity, creativity, and discovery. We invite organizations of all kinds—businesses, nonprofits, schools, and community groups—to join us in making science accessible, engaging, and fun for everyone.

You don’t need to be a science organization to participate. If your work sparks ideas, connects people, or encourages learning, there’s a place for you in the festival. 

Not sure where you fit in? That’s okay! We welcome organizations and individuals from all backgrounds—no science degree required. If you're passionate about learning, community, and curiosity, there's a place for you in the COSI Science Festival. We celebrate science that’s rooted in evidence, discovery, and collaboration. If your work helps people explore the world in thoughtful, informed ways, we’d love to partner with you.