Imagine a rock, larger than a mountain, tumbling through our solar system from an unknown star. Now, imagine that rock suddenly accelerating, as if a colossal, invisible engine just fired, pushing it faster and faster away from our Sun.
This is the baffling mystery of 3I/ATLAS, an interstellar visitor that is forcing scientists to question what is possible—and what might be out there. It's an anomaly so profound that it has, according to some reports, captured the attention of the US Congress.
