See a list of Upcoming Events Open Play Hours – School Year Hours in Effect Open Hours, during Dicken’s Festival Weekend: December 6-7thJoin the Long Island Explorium for a Weekend of Family Fun! December 6-7, 20251:00-5:00 pm (museum open hours) Step back in time for a festive afternoon at the Long Island Explorium! Enjoy popcorn…

Celebrate Community, Creativity, and Cheer this Black Friday Open Hours, November 28, 2025 (Black Friday)Community Appreciation Day Black Friday at the Long Island Explorium! Black Friday at the Long Island ExploriumFriday, November 28, 20251:00 PM to 5:00 PM Kick off the holiday season with a STEM filled afternoon at the Long Island Explorium. Bring the…

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…

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…

November 20, 2025 – GIRL SCOUTS – STEM SCOUTS Thursday, November 20th, 2025 Juniors & Cadettes Thursday, November 20, 2025 | 5:00 – 6:30 PM Long Island Explorium, Port Jefferson A thrilling STEM mystery adventure for curious Scouts! Who stole the cookies? Step into the shoes of a real detective and use logic, observation, and critical…

NOVEMBER 18, 2025 – GIRL SCOUTS – STEM SCOUTS November 18, 2025 For Girl Scout Daisies & Brownies Tuesday, November 18, 2025 | 5:00 – 6:30 PMFor Girl Scout Daisies & Brownies Calling all Girl Scouts! Join us at the Long Island Explorium for a special evening of hands-on STEM discovery designed just for scouts.…

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…

DISCOVERY 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…

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…

DISCOVERY 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! OCTOBER 13, 2025 November 4th, 2025 – SPOOKY SCIENCE LAB School Holidays November 2025 Turn a school holiday into a day of discovery! Each Discovery Day blends…

 First Mondays: Preschool & Homeschool Families Welcome – November 3rd, 2025 Kick off each month with a special STEM-filled morning designed for preschool-aged children and homeschool families at the Long Island Explorium! From 10:00 AM to 12:00 PM, enjoy private access to our interactive exhibits and engage in a new self-guided activity each month, thoughtfully…

Light up the Future Campaign 2025 Join Us As A Legacy Partner Complete our Gala Interest Form to be kept up to date on news and ticket sale dates. Gala Tickets on Sale Silent Auction – Coming Soon Donate Now 20 years of Innovation Celebrating 20 Years of Impact An unforgettable evening of elegance, inspiration,…

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. Get ready for…

OCTOBER 30, 2025 – GIRL SCOUTS – STEM SCOUTS October 30, 2025 Juniors & Cadettes Calling all Girl Scout Juniors and Cadettes! Join us at the Long Island Explorium for our STEM Scouts: Girl Scout Badge Quest – Coding Basics workshop, specially designed for older scouts ready to take their coding skills to the next level. Jump to…

OCTOBER 28, 2025 – GIRL SCOUTS – STEM SCOUTS October 28, 2025 Daisies & Brownies Calling all Girl Scouts! Join us at the Long Island Explorium for a special evening of hands-on STEM discovery designed just for scouts. Whether attending with your troop or individually, scouts will experience an engaging, supportive environment that encourages curiosity…

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. Get ready for…

  STEM-oween Spectacular at the Long Island Explorium – October 24, 2025 Get ready for a Halloween event like no other! Dress up in your favorite costumes and bring the whole family for an evening of spooky STEM fun. Explore hands-on experiments that spark curiosity and creativity in a festive, family-friendly atmosphere. Highlights include: 👻…

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…

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. Get ready for…

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…