Enjoy FREE museum admission all day during H-E-B Free Fourth Sundays, held the fourth Sunday of every month. Explore the story of life in the natural world in Texas from the formation of our planet, through the age of the dinosaurs, into our current environment. See fascinating fossils and examples of Texas wildlife, touch real meteorites, and walk beneath the 33-foot wingspan of a pterosaur and tyrannosaur! The museum is open from 1:00 to 5:00 p.m. on Sundays (last admission is at 4:30).