Exoplanets

Exoplanets are planets outside our solar system that orbit stars other than the Sun. They vary widely in size, composition, and distance from their stars. Some are rocky like Earth, while others are giant gas planets like Jupiter. Scientists discover exoplanets using methods such as detecting changes in a star's brightness or measuring the star's wobble caused by an orbiting planet. Studying exoplanets helps us understand planetary systems, the diversity of worlds in the universe, and the potential for finding environments where life could exist beyond Earth.