Astronomers believe a major collision in the distant past may have dramatically reshaped the Milky Way. According to the report, an encounter with the Gaia Sausage dwarf galaxy around 10 billion years ago could have altered the orientation of our galaxy by more than 90 degrees.
The idea suggests the Milky Way was not always positioned the way it appears today. If this interpretation is correct, the ancient merger did more than simply add stars and material — it may have fundamentally changed the galaxy’s overall alignment.
Such a finding would add to growing evidence that galaxy evolution is strongly influenced by violent interactions over billions of years. A collision of this scale could help explain why the Milky Way’s structure and history are more complex than once thought.
While the claim points to a dramatic turning point in the Milky Way’s past, it also highlights how astronomers are still piecing together the galaxy’s earliest history. The proposed role of the Gaia Sausage dwarf galaxy offers another clue in understanding how the Milky Way became the system seen today.
