It was discovered on October 19th, 2017 and it was recognized as the first known object of its type. It is unique since it is the first known object that came from outside our solar system. But while we observed it, the mystery surrounding it grew.
It was discovered on October 19th, 2017 and it was recognized as the first known object of its type. It is unique since it is the first known object that came from outside our solar system. But while we observed it, the mystery surrounding it grew.