After 30 Years of Discovery, These Are Astronomers’ Top Five Exoplanets

Thirty years after Swiss astronomers discovered the first planet orbiting a Sun-like star, the search has revealed over 6,000 exoplanets with thousands more candidates. This diverse "exoplanetary zoo" includes hot gas giants, super-Earths, and systems unlike anything in our Solar System, detected primarily by NASA's Kepler and TESS missions. Top discoveries include the nearby Proxima Centauri planets potentially reachable by future spacecraft, the seven Earth-sized TRAPPIST-1 worlds, and the musical K2-138 system where planets orbit in mathematical harmony. These discoveries have revolutionized understanding of planetary formation and revealed that complex planetary systems can exist around both single and double stars.