A team of astronomers has attempted to track the path of interstellar object 3I/ATLAS back into the past, tracing its path through the galaxy in simulations involving over 13 million stars. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

On July 1, astronomers spotted an unusual object speeding through the Solar System at nearly twice the velocity of previous interstellar visitors ‘Oumuamua and Comet Borisov. The object was soon confirmed to be an interstellar comet, and is suspected to have a nucleus (the rocky center of the comet, excluding its coma) of around 5.6 kilometers (3.5 miles), and a potential mass of over 33 billion tons .

The astronomical community continued to track the object as it moved through the Solar System an

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