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Countless Colors
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Main navigation
Visit
Plan Your Visit
After Dark Thursdays
Calendar
Exhibits
Museum Galleries
Artworks on View
Getting Here
Visitor FAQs
Event Rentals
School Field Trips
Education
Education Resources
Professional Development
Free Educator Workshops
Tools for Teaching and Learning
Learning About Learning
Community Programs
Educator Newsletter
Explore
Everything
Activities
Videos
Exhibits
Websites
Articles
About Us
Learn About Us
Our Story
Partnerships
Global Collaborations
Arts at the Exploratorium
Awards and Recognition
Contact Us
Join + Support
Donate Today!
Support Our Impact
Membership
Join Our Donor Community
Engage Your Business
Attend a Fundraiser
Explore Our Reach
Host Your Event
Volunteer
Store
Buy Tickets
Donate
Countless Colors
Countless Colors
How many colors can you make by mixing red, green, and blue light?