Meet Henrietta Swan Leavitt, the 19th-century astronomer who mapped the stars! Come out to see Silent Sky with half-off tickets, open September 27 through October 12. Learn the fascinating and true story behind one woman’s discovery with measuring the distance between Earth and other galaxies. This opened up a new universe for Henrietta Swan Leavitt and her fellow “computers” at Harvard Observatory. Get 50% off tickets to see Silent Sky at Quannapowitt Players Theater! This is a true story of…