Exosolar

Exosolar is a term used to describe something originating from outside our solar system. In the context of astronomy, it most commonly refers to exoplanets, which are planets orbiting stars other than our Sun. The study of exoplanets is a relatively new but rapidly advancing field, driven by the discovery of thousands of these distant worlds.

The term "exosolar" can also be applied more broadly to any celestial object or phenomenon that is not part of our solar system, such as exomoons (moons orbiting exoplanets) or interstellar comets that pass through our solar system. Understanding exosolar objects helps scientists to better comprehend the diversity of planetary systems and the processes of planet formation throughout the galaxy.

The search for and characterization of exosolar bodies are primary goals of many modern astronomical missions and observatories. These efforts aim to answer fundamental questions about our place in the universe, including the prevalence of potentially habitable worlds.