Nah, they got pictures of the banner attached to it, trailing behind, says “eat at joe’s, on saturn.”
Unbeknownst to those controlling the comet seeking probe, the intense alternating magnetic fields coupled by intense light emissions from the comet has confused the autopilot orientation controlling the satellite, resulting the the photographs being sent instead into the deep space of the galaxy, but in the opposite direction than Earth.
Per chance an advanced alien species, having recently intercepted the Earth probe Galileo, cognizant of the rarely encountered intelligent life in a foreign system, recognizes the transmissions for what they perceive them,...as friendly gestures of an advanced intelligent species seeking a friendly liaison with perhaps another intelligent species.
Closely calculating the source of the transmission and its content, the foreign species identifies not only the source as the Comet, and the satellite transmission as a photograph of our home,...they also calculate its deadly trajectory with another celestial body, a mysterious blue planet orbiting the distant star, which will obviously destroy the comet upon their intersection.
Reverse calculating the trace of both bodies, the foreign friendly aliens have now reprogrammed their satellite weapon systems to destroy the blue planetary nemesis before it able to destroy the comet, thereby guaranteeing the safety of their newly found friends, as a gesture of pure intergalactic goodwill.