Super-Earths are a type of exoplanet that have a mass larger than that of Earth but significantly less than that of gas giants like Jupiter or Saturn. They typically range from about 1.5 to 10 times the mass of Earth and can be rocky or have thick atmospheres. Their size allows them to potentially hold onto more atmosphere and water, making them interesting candidates for the search for extraterrestrial life. These planets are often found in the habitable zone of their stars, where conditions might allow for liquid water to exist. The discovery of super-Earths has expanded our understanding of planetary formation and the diversity of worlds beyond our solar system, highlighting the variety of environments that may exist in the universe.