The interstellar visitor, comet 3I/ATLAS, is shedding light on a key scientific question regarding planetary formation in the universe. This comet, which originates from another stellar system, serves as a time capsule containing vital information for scientists looking to understand how planets are formed beyond our solar system. In particular, a recent study has made remarkable progress by precisely tracking the atomic emissions of nickel and iron from the comet before and after it reached its closest approach to the Sun on October 30. This kind of detailed monitoring is incredibly rare, and such data has seldom been recorded from comets that arise from our own solar system, with only one comparable case being that of comet C/2002 V1 (NEAT).