DK Explore Space Learning Powerpack [Old Version] Dual CD package includes Atlas of the Solar System and Encyclopedia of Space &amp; Universe Fly on virtual 3D tours of the planets and observe the moons of Jupiter close up Meet experienced astronauts and rocket scientists; discover if you have what it takes Discover how gravity affects planetary &amp; satellite movement and how weightlessness affects humans Recreate the night sky for any moment from 3000 BC to 7000 AD