However, despite the theories, a fresh radio search has turned up no sign that the object, now named 3I/ATLAS, is emitting anything artificial, despite months of claims that the interstellar body ...

An interstellar comet known as 3I/ATLAS, which swept past the Sun in 2024, could be a 12‑billion‑year‑old relic from deep ...

Interstellar comet 3I/ATLAS was first spotted in our solar system in July 2025. Since its arrival, scientists have been confident it is a natural comet, but its rare interstellar origin made it an ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

A NASA‑linked study argues that alien probes could already be in our Solar System, but our surveys are still too crude to rule them out. From misidentified rocket boosters to blurry moon maps, it ...