Planning a visit to the newest proposed national park? You can leave your sunscreen at home, but make sure you have oxygen and a gamma-ray spectrometer handy.

On Tuesday, Maryland congresswoman Donna Edwards (D-MD), who sits on the House Subcommittee on Space, proposed a bill that would create a new national park on the surface of the moon. The Apollo Lunar Landing Sites National Historic Park would preserve and protect historical artifacts—including U.S. flags, golf balls, and a memorial to fallen comrades—that were left behind by NASA's Apollo missions.