AstroGrid turns your browser into a spaceship. Fly from Earth's surface to the edge of the observable universe, all in real 3D. • 119K real stars (HYG catalog) with accurate B-V colors • NASA JPL orbital mechanics for the Solar System, in real time • 14K deep-sky objects, black holes with gravitational lensing, pulsars, supernovae, and gravitational-wave events • Runs entirely client-side. No install, no signup. Built for the curious students, educators, and space nerds.
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