Scientists trace latest interstellar comet’s home to a cold, isolated corner of the Milky Way

Scientists traced interstellar comet 3I/Atlas to a cold, isolated region of the Milky Way, suggesting it formed in a pre-solar system environment. The comet, estimated at 11 billion years old, exhibits high deuterium levels in its water, indicating origins in a colder, less heated stellar nursery. The University of Michigan-led study used the ALMA observatory and Hubble Space Telescope for analysis.