20th St & Ben Franklin Pkwy. 215/448-1200.
Science Center 9:30am-5pm Sun-Sat. Mandell Center 9:30am-5pm. The Tuttleman IMAX Theater is open Sun-Thu 9:30-5pm, Fri-Sat. 9:30am-9pm Fri, Sat. Adults $14.75. Children 4-11 $11.50, Seniors/Military/Students $11. (Additional for IMAX and Franklin Theater tickets.)
Visitors to the Franklin will find hundreds of hands-on exhibits, live demonstrations, high-tech theaters and special programs designed to open the world of science. Visit the Fels Planetarium for a deep-space view of life, the unverse, and everything.