Scientists trace fireball to strange rocky meteoroid from the Oort Cloud

A rocky meteoroid that exploded over Canada last year was more extraordinary than it first seemed: it originated from the outer solar system, where scientists thought only icy bodies existed.

A cavalcade of both professional and amateur astronomers caught images and videos of the meteoroid nor it exploded over Alberta. By studying this data, researchers have determined that the meteoroid broke apart like a rocky object, surviving to deeper into Earth’s atmosphere than icy objects on similar trajectories do. However, the analysis also suggested that the meteoroid came from the Oort Cloudfar beyond Pluto. Discovering a rocky body from this region could rewrite existing theories of how the solar system formed.