"In humanity's long history of exploring the stars, two theories have forever changed our understanding of our place in the universe—the geocentric model and the heliocentric model. Now, in our interactive exhibit, this scientific revolution that took place hundreds of years ago is presented to you in a completely new way. Upon entering the exhibition area, you are first greeted by a huge projection wall displaying two strikingly different models of the universe. The moment you touch the control panel, a scientific dialogue across time and space begins. Selecting the ""Geocentric"" mode will transport you to Ptolemy's universe: the Earth is at the center, the sun, moon, and stars revolve around us, and the complex epicycle system explains the retrograde motion of the planets. Switching to the ""Heliocentric"" mode brings Copernicus's solar system to life—the sun becomes the center, the Earth returns to its proper place, and the planetary orbits become simple and elegant. The most cap