CLEVELAND (March 31, 2026) – We’re Over the Moon about the pending Artemis II mission, which could launch as early as tomorrow, sending four astronauts on a 10-day lunar flyby mission.

On April 1, the Science Center will show the NASA prelaunch livestream at the Discovery Stage. The livestream will run throughout the day, except for a pause at 1:30 p.m. for the Big Science Show. Starting at 1:30 p.m. until 5 p.m. guests can stop by the Apollo capsule gallery to learn more about the Artemis mission. Our STEM team will be ready to answer your questions about this 10-day mission that will take astronauts around the moon for the first time since 1972!
 
Also in April, families can take part in our Go for Launch! Design A Rocket family workshops at 1 p.m. and 3 p.m. on Sunday, April 5, 12, and 19. Design a rocket powered by rubber bands and launch it across the room! Can you build a rocket that can go to Mars? There is a $5 materials fee for the family workshops.
 
Then on April 18 and 19 join us for Over the Moon, a weekend filled with space related activities, including: 

  • Liftoff: Math in Space Science Show – 3-2-1 blast off! We use gravity-defying experiments to explore the stages of human flight outside Earth’s orbit and the mathematics that make it possible. 
  • Lunar Scavenger Hunt – Track down exhibits that tell the history of spaceflight and complete a map of the moon to earn a prize!
  • Artemis Chat – Talk with a Science Center expert about the Artemis II mission, supported by an in-depth interactive presentation.
  • Mission to STEM – Interact with the NASA Glenn Visitor Center with an augmented reality app!
  • Space Food Cart – What do they eat in space? See real food prepared for astronauts up close and learn about how it’s made and eaten!
  • Vacuum Demonstration Cart – Explore how materials behave in a vacuum, and how astronauts protect themselves in space! 

Over the Moon activities are included with general admission. Visit GreatScience.com for ticket information. 
 
About Great Lakes Science Center
Great Lakes Science Center, celebrating its 30th anniversary in 2026, has reached more than 10 million visitors, and serves as a STEM education leader in Northeast Ohio. The Science Center produced Total Eclipse Fest in 2024, one of the largest free eclipse events in the country and is home to the NASA Glenn Visitor Center. The Science Center makes science, technology, engineering and math (STEM) come alive for more than 300,000 visitors a year through hundreds of hands-on exhibits, temporary exhibitions, the Cleveland Clinic DOME Theater, historic Steamship William G. Mather, daily science demonstrations, seasonal camps and more. The Science Center, a 501(c)(3) non-profit institution, earned a Charity Navigator Four Star Rating in 2025, receiving top scores for financial efficiency, sustainability and trust worthiness. The Science Center is supported in part by the residents of Cuyahoga County through a public grant from Cuyahoga Arts & Culture. Visit GreatScience.com for more information.