3I/ATLAS: Could an Interstellar “Gardener” Have Seeded Life on Earth?
The arrival of object 3I/ATLAS has reignited debate over whether such visitors are purely natural or could represent extraterrestrial technology. Harvard astrophysicist Avi Loeb has argued that certain features of 3I/ATLAS, such as its trajectory and reported rhythmic brightening, could be consistent with “directed panspermia.”
However, the prevailing scientific consensus, including analyses by NASA and independent astronomers, including from the SETI Institute, continues to classify 3I/ATLAS as a natural interstellar comet, citing its dust production, gas emissions, and overall cometary behavior. Many researchers emphasize that extraordinary claims require extraordinary evidence.
Sofia Sheikh, a technosignature researcher at the SETI Institute, explains how SETI Institute scientists search for evidence of technology by analyzing narrowband radio signals, while rigorously filtering out terrestrial interference. To date, no credible artificial signals have been detected from 3I/ATLAS. This episode underscores the value of open data, careful skepticism, and coordinated observations when evaluating rare interstellar visitors.
Read the full article by IBTimes UK: 3I/ATLAS: Harvard Scientist Says Alien ‘Interstellar Gardener’ Seeded Life on Earth