At the Kennedy Space Center Visitor Complex in Florida, Holidays in Space 2017 kicked off with a dazzling performance by the dance group Fighting Gravity, which uses optical illusions, black light and the interplay of light and dark in its gravity-defying choreography. Holidays in Space 2017 kicked off Dec. 20 and includes nightly performances and fireworks from Dec. 20 through 31, excluding Dec. 25.