Science ❯ Astrobiology ❯ Extraterrestrial Life ❯ Alien Technology

Speculative Theories

New Spectra Show 3I/ATLAS Is a Carbon‑Chain–Depleted Interstellar Comet With Weak CN Emission

Fresh datasets are refining its composition alongside its trajectory.

Hubble Images Spur Juno Mission Study for Interstellar Comet

Rubin Observatory Captures Pre-Discovery Video of Natural Interstellar Comet 3I/ATLAS

New Analysis Bolsters Natural Cometary Origin for Interstellar Visitor 3I/ATLAS