Want to see the U.S. Space & Rocket Center with its historic Saturn V rocket, moon rock and Apollo 16 capsule for free? This Saturday is the day when the rocket center, a Smithsonian Affiliate museum, joins museums across the country offering free admission for Museum Day Live!

Hours are 9 a.m. to 5 p.m., and you do need a ticket to get inside. Visit Smithsonian.com/museumday to sign up. You can print the ticket and bring it with you or have it on your mobile device. A ticket provides free admission for two people. The center is located on Interstate 565 in Huntsville, Ala.