nasa 4d🚀 A Unified Hub for the Sun–Earth System. The Heliophysics Dital Resource Library (HDRL) brings together NASA's solar and space physics data into aNASA’s Solar System Interactive (also known as the Orrery) is a live look at the solar system, its planets, moons, comets, and asteroids, as well as the real-time locations of dozens of NASA missions.