NASA's Europa Clipper Observes Interstellar Comet 3I/ATLAS

NASA's Europa Clipper spacecraft, en route to Jupiter, conducted observations of interstellar comet 3I/ATLAS on November 6, 2025. Utilizing the Europa Ultraviolet Spectrograph (Europa-UVS), the spacecraft captured data from approximately 102 million miles (164 million kilometers) away, offering insights into the comet's composition and activity.

The Europa-UVS instrument collected ultraviolet light to analyze the chemical makeup of the comet's coma—the cloud of gas and dust surrounding its nucleus. By combining multiple observations, the team produced a composite image revealing the coma's structure and the comet's twin tails.

Dr. Kurt Retherford, Principal Investigator of Europa-UVS from the Southwest Research Institute, noted the significance of these observations:

"We're excited that this opportunity to view another target on the way to Jupiter was completely unexpected. Our observations have allowed for a unique and nuanced view of the comet."

Launched in October 2024, Europa Clipper is scheduled to arrive at Jupiter in April 2030. Its primary mission is to investigate Europa, one of Jupiter's moons, for conditions that might support life. The recent observations of 3I/ATLAS demonstrate the spacecraft's capability to conduct valuable scientific research during its journey.