ESA is making use of spacecraft originally dedicated to its Mars and Jupiter missions to track comet 3I/ATLAS as it continues its journey through our solar system

Interstellar comet 3I/ATLAS will be eyed by Mars and Jupiter probes as it zooms past the sun this month

Source: space
Source Link: https://www.space.com/astronomy/comets/interstellar-comet-3i-atlas-will-be-eyed-by-mars-and-jupiter-probes-as-it-zooms-past-the-sun-this-month