US Govt Admits a Strange Object From Interstellar Space Struck Earth

Interstellar Meteor 1: Declassified files have revealed that in 2014, nearly three years before Oumuamua made headlines, an unusual object struck our planet on January 8th. It penetrated Earth's atmosphere, leaving fiery trails across the skies of Papua New Guinea, and ultimately crashed into the coast of Manus Island in a dramatic explosion. Although data recorded by the sensors of certain spy satellites suggested that the object likely originated from interstellar sources, this information remained classified, shrouding the meteor's origin in mystery for years.Show more

However, recent ongoing research has finally confirmed that the mysterious meteor did indeed originate from another star system. This object has been named "Interstellar Meteor 1" or IM1. Chronologically speaking, this discovery establishes IM1 as the first known interstellar visitor, preceding two subsequent objects: the asteroid 'Oumuamua and the rogue comet Borisov.

But how did scientists confirm that IM1 originated outside of our solar system? Moreover, why did it take almost a decade to confirm the origins of this celestial object?