Open House 2026

At Argonne National Laboratory, we are committed to creating a welcoming environment for all our visitors.

We’re excited to welcome you to Argonne for a day of discovery, connection, and a behind-the-scenes look at the science shaping our world. The Open House will be full of indoor and outdoor experiences held within the lab’s 2.7- square mile campus.

From Supercomputers to Slime: What to Do and See at Argonne Open HouseExplore Argonne through hands-on activities, surprising experiments, and behind-the-scenes tours.

Argonne Open House 2026Saturday, June 27, 20269:00 a.m. – 4:00 p.m.Lemont, Illinois

Safety and Security OverviewSafety and security are Argonne’s top priority for the Open House. We have put measures in place to ensure an enjoyable experience and a family-friendly environment to encourage learning and discovery.

Registration is required for all attendees regardless of age. As part of registration, you will choose a 30-minute entry gate and window. Please arrive during that window to ensure smooth flow of traffic into the event.

Multiple maps are available as resources to make the most of your visit during Argonne’s Open House.

Are you interested in a career in science, engineering, or technology? Curious about what it’s like to work at a national laboratory? Argonne’s Open House can help you take the next step.

Do you know a curious kid who loves to explore how the world works? Looking for hands-on activities that spark imagination and creativity? Argonne’s Open House has something for the whole family.