Watching Comet ISON's Journey Around the Sun - NASA Science

Comet 3I/ATLAS doesn't pose a threat to Earth, but it does provide NASA scientists and spacecraft a rare opportunity to study an interstellar comet as it passes through our solar system. ☄ go.nasa.gov/3iatlas Track the current and future position of Comet 3I/ATLAS using our "Eyes on the Solar System" interactive. Here it is passing near Mars this coming weekend: go.nasa.gov/4goaV2t | NASA Solar System Exploration

As NASA continues to study the interstellar comet 3I/ATLAS, two space telescopes have made new observations, together providing more information about its size, physical properties, and chemical makeup. NASA's James Webb Space Telescope observed the object with its Near-Infrared Spectrograph instrument go.nasa.gov/4n3RDS7 and the new SPHEREx telescope contributed new data as well go.nasa.gov/47IVWO3 All about this comet, the third such interstellar visitor that NASA has observed: science.nasa.go