Interstellar Comet 3I/ATLAS experienced a dramatic increase in activity after its closest approach to the Sun, with all types of ice sublimating and releasing organic molecules like water, carbon dioxide, and hydrocarbons. This suggests a unique formation history and composition.
NASA missions are tracking and studying the rare interstellar comet 3I/ATLAS as it passes through our solar system, with observations from Hubble, Webb, SPHEREx, and others.
