Mysterious 'Oumuamua Object Returns to Interstellar Space After 7-Year Journey A peculiar interstellar object, known as 'Oumuamua, has completed its 7-year journey through our solar system and is now back in interstellar space. Discovered in 2017, 'Oumuamua was initially thought to be a comet or asteroid but was later classified as an interstellar object due to its unique shape and trajectory. Scientists have been studying the object's behavior and composition, but many questions remain unanswered about its origins and purpose. As 'Oumuamua disappears into the vast expanse of interstellar space, researchers are left to ponder what secrets it may have held and what other mysteries lie beyond our solar system.