Current & Upcoming
Open Play Hours – Nov 8th- 9th
Nov 08, 2025 1:00PM—Nov 09, 2025 5:00PM
Long Island Explorium Port Jeff Harbor 101 East Broadway Port Jefferson, NY 11777
Museum Hours See a list of Upcoming Events Open Play Hours – School Year Hours in Effect Open Play at the Long Island Explorium Join us as we celebrate STEM, Space, Math, and Maker Activities all month long with exhibits, workshops, and special events! Join us for hands-on activities, crafts, and more. Our current General…
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Discovery Days at the Long Island Explorium – November 11, 2025
Nov 11, 2025 9:00AM—3:00PM
Long Island Explorium 101 East Broadway Port Jefferson, NY 11777
RegisterDISCOVERY DAYS AT THE LONG ISLAND EXPLORIUM School holiday plans, solved. Hands-on STEM days for grades 1–5. Half Day or Full Day. Small groups. Big curiosity. REGISTER NOW! NOVEMBER 11, 2025 November 11, 2025 – STEM Superpowers School Holidays November 2025 Turn a school holiday into a day of discovery! Each Discovery Day blends fun…
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July – August 31st Exhibit – Spy Tech from Then to Now
Jul 01, 2026 12:00AM—Aug 31, 2026 11:59PM
Long Island Explorium Port Jeff Harbor 101 East Broadway Port Jefferson, NY 11777
Summer Themes See a list of Upcoming Events Open Play Hours – School Year Hours in Effect Open Play at the Long Island Explorium Join us as we celebrate STEM, Space, Math, and Maker Activities all month long with exhibits, workshops, and special events! Join us for hands-on activities, crafts, and more. July 1 -…
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