Celestia vs EPIC

Celestia — real-time 3D visualization of space 3D Space Simulator | Celestia lets you explore our universe in three dimensions. Celestia simulates many different types of celestial objects. From planets and moons to star clusters and galaxies, you can visit every object in the expandable database and view it from any point in space and time. The position and movement of solar system objects is calculated accurately in real time at any rate desired. Interactive Planetarium | Celestia serves as a planetarium – for an observer on any celestial object. You can easily navigate to any world and land on its surface. When used as a planetarium, Celestia shows accurate positions of solar system objects in the sky. You can switch labels and other supporting features on and off with hotkeys, or zoom in and out on an object of interest, for example Jupiter’s system of moons. Expandable Content | Customize Celestia according to your needs. Celestia’s catalogues can be easily expanded. There are many different add-ons available containing new objects like comets or stars, high-resolution textures of Earth and other well mapped solar system bodies, as well as 3D models for asteroids and spacecraft on precise trajectories. Even fictional objects from well-known sci-fi franchises can be found. EULA(End User License Agreement): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

EPIC – NASA Explorer Explore the universe with NASA — every day. EPIC brings together the best public NASA media in one app: the daily Astronomy Picture of the Day, Mars rover photos, Hubble and James Webb images, Earth views from space, and curated NASA video collections. Browse, search, save favorites, and dive deeper into the missions that inspire us. TODAY Start each day with NASA’s Astronomy Picture of the Day — stunning images with clear explanations. EXPLORE Browse themed collections: Mars rovers, Apollo, Artemis, Hubble, James Webb, eclipses, launches, and more. Young Explorers adds NASA videos and STEM activities for curious minds of all ages. SEARCH Search the NASA Image Library and discover photos and videos across decades of space exploration. FAVORITES Save images you love and build your own space archive. NASA LIVE Watch NASA’s live stream when available. Built for iPhone, iPad, Mac, and Apple Vision Pro — one app for daily inspiration and deep exploration.