Speculation is mounting as scientists start to consider what would happen if interstellar visitor 3I/ATLAS ever struck Earth though it might sound like something straight out of science fiction, being able to map a trajectory, mass and velocity starts to elucidate the devastation a cosmic-scale collision could cause.

What is the 3I/ATLAS?

It found on July 1, 2025, by the ATLAS survey telescope, 3I/ATLAS is the third confirmed object to enter our solar system from somewhere beyond. The comet is on a hyperbolic trajectory which means it is not bound to the Sun and is merely visiting it temporarily. Its closest approach to Earth is calculated to be perhaps around 1.8 astronomical units about 270 million kilometers so there is no real threat at this time.

What are impact Scenarios of What i

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