From Murchison Road, turn right (if heading away from downtown) or left (if heading towards downtown) at the light for W.T. Brown Drive (the main campus entrance). Go up the hill, and the last building on the left before you reach the stop sign is the Lyons Science building (it is the building without the brick facade). If you are driving a school bus, stop here to drop your students off. The door on the left side of the building (across from the fire hydrant) is the hallway for the Planetarium.
If you are driving a school bus, proceed past the stop sign and across the railroad tracks. Make the first right (Mary T. Eldridge St.) and park at an available spot. However, if campus police are stationed, follow their instructions. Allow time for parking, especially for morning shows.
If you are driving a personal vehicle, it must be registered on campus. Proceed to the first stop sign after the Lyons Science building (just before the railroad tracks) and turn left to M. L. King Drive. After crossing a red brick crosswalk, go to the second building on your left. This is the Mitchell building, where the campus police are. Bring your vehicle registration and follow their instructions on where to park. Allow at least 15 minutes to get your vehicle registered (vehicle registration is free).
For more information about campus buildings and parking, select "Lyons Science Building" (not Lyons Science Annex) and there will be a link with a Google map for the campus, as well as a parking map.