Exoplanets are planets that orbit stars beyond our Solar System.
Because these worlds are extremely distant and often hidden by the brightness of their host stars, astronomers usually detect them indirectly by observing how they affect the light or motion of a star.

Since the first confirmed discovery in the 1990s, thousands of exoplanets have been found. These worlds vary dramatically in size, composition, and environment, ranging from giant gas planets to rocky planets that may resemble Earth.

The study of exoplanets has transformed our understanding of planetary systems and has become one of the most important fields in the search for life beyond Earth.

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