Interstellar comet 3I/ATLAS is tearing across the inner solar system at roughly 130,000 miles per hour, a speed that turns our planetary neighborhood into a brief flyby stage. It is only the third ...

Interstellar comet 3I/ATLAS has turned a routine solar system flyby into a natural physics experiment, with a wobbling jet and a tail that appears to point toward the Sun instead of away from it. As ...