Astronomy Fluxx Card Game - Explore Space with NASA PhotographsFun Card Games Astronomy Fluxx takes you to outer space, but this time it's not science fiction. With stunning NASA photographs of planets and stars, you will have a ball while learning about space and humanity's space flight history. Game Play Made for 2 6 players ages 8 to adult. Play time takes 5 30 minutes. The game includes 100 beautifully illustrated playing cards. Expand your education and learning about all things space with Astronomy Fluxx.