Celestia – real-time 3D visualization of space The free space simulation that lets you explore our universe in three dimensions. Unlike most planetarium software, Celestia doesn’t confine you to the surface of the Earth. You can travel throughout the solar system, to any of over 100,000 stars, or even beyond the galaxy. Свако кретање у Целестији је беспрекорно. Функција експоненцијалног зумирања вам омогућава да истражујете простор у великом распону скала, од кластера галаксија до свемирских летелица пречника само неколико метара. A ‘point-and-goto’ interface makes it simple to navigate through the universe to the object you want to visit. Celestia is expandable. Celestia comes with a large catalog of stars, galaxies, planets, moons, asteroids, comets, and spacecraft. If that’s not enough, you can download dozens of easy to install add-ons with more objects.