Solar Sandbox

Solar Sandbox is a hands-on universe you build with your fingertips, and a space guide that teaches how it all works. Tap to place a star, then drag and release to fling planets into orbit. Orbit Guide works out the speed for a clean circular orbit, and a dotted path shows where a world will travel before you let go. LIVING WORLDS Planets react to their star. Rocky worlds in the green habitable zone grow oceans, continents and clouds. Too close and they melt into lava; too far and they freeze over. Sling an icy comet into a dry world to bring the water back. COSMIC EVENTS • Make a star go supernova and leave a spinning black hole behind • Watch moons that stray too close to a gas giant break into rings • Crash worlds together and watch them merge in a burst of fire SPACE GUIDE Thirty illustrated topics for curious minds of all ages: the Sun, the Moon and every planet, comets and…