The Space Sciences Laboratory is on the ridge above the main campus.
Click for bus schedule: The "H" shuttle bus costs only $1 (or free with a Class Pass) and departs twice hourly from the Hearst Mining Circle (in front of Campbell Hall) at :15 and :45.
If you bring a car, park down the road at the uppermost terrace lot for the Lawrence Hall of Science, and walk up to SSL. Parking costs 50 cents per hour; be sure you're in one of the lots that allows daytime public use (e.g. the Terraces lots: "Vista" lot and the "East" lot). Parking is NOT available directly at SSL.
Meeting room at SSL: