Lehigh Valley Space Fest is a FREE, fun event for the whole family Saturday, September 26, 2026 (10am-4pm) at Lehigh University's Mountaintop Campus in Bethlehem, PA! Our Mission is to "bring space down to Earth” and inspiring future generations through an out-of-this-world, annual event packed with educational and awe-inspiring topics related to NASA missions, space exploration, astronomy and more!