Galactic Center Radio Transient GCRT J1745-3009 (2002)

Discovered in 2002, GCRT J1745-3009 is a mysterious, short-lived radio burst originating near the Milky Way's galactic center. This transient source flared brightly for about an hour, then vanished, repeating irregularly. Its unusual properties don't match any known type of star or cataclysmic event. This enigmatic signal remains unidentified, suggesting it may represent a new, unknown class of astronomical object or an exotic physical process not yet understood by science.