Exploration of Planets, Solar System and Stars with online 3D Simulator
The nearest stars, their distances in light-years, spectral types and known planets.
Learn about skywatching, astronomy, star gazing, comets in the nightsky at Space.com. View images of celestial bodies, discover astrophotography, learn about telescopes and get the latest news.
The universe is a weird place. Here's a look at some of the strangest things in the cosmos.