In spectacularly good timing a coronal mass ejection (CME) from the Sun is about to collide with an object which came from outside of the Solar System. The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

On July 1, 2025, astronomers spotted an object moving through the Solar System at nearly twice the velocity of previous interstellar visitors ‘Oumuamua and Comet Borisov. The object, which was confirmed to be an interstellar comet with its own dusty coma, and suspected to be far larger than the previous two, with a estimated nucleus (the rocky part of the comet, excluding its coma) of around 5.6 kilometers (3.5 miles), and a possible "anomalous" mass of over 33 billion tons .

The astronomical community continues to track the object, kno

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