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Extraterrestrial Life

Interstellar Objects Technosignatures Icy Moons Mars Habitability Habitability UFO Research Interstellar Exploration SETI Mars Exploration K2-18b

JWST Spots CO2‑Heavy Coma on Interstellar Comet 3I/ATLAS

A new preprint reports an unusually high CO2-to-water ratio, prompting follow-up checks by other teams.

Webb and SPHEREx Confirm CO2-Dominated Coma Around Interstellar Comet 3I/ATLAS

Reanalysis Sharpens 1977 'Wow!' Signal: Stronger, Higher-Frequency, Tighter Origin

Study Maps Where Earth's Deep-Space Signals Leak and How SETI Should Listen

Hubble Captures Sharpest View of Interstellar Visitor 3I/ATLAS, Strengthening Comet Case

Perseverance Returns Sharpest 360° Panorama From Mars’s Falbreen Site

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

Probe Theory for Interstellar Comet 3I/ATLAS Divides Researchers as October Perihelion Nears

Hubble Captures Coma of Interstellar Comet 3I/ATLAS as Experts Uphold Natural Origin

Hundreds of TESS Exoplanets Are Larger Than Believed

Earth’s Radar Leakage Could Broadcast Its Location to Aliens 200 Light-Years Away

Global Telescopes Capture Active Coma of Interstellar Comet 3I/ATLAS

3I/ATLAS Confirmed as Third Interstellar Object, Set to Fly Past Mars

Interstellar Object A11pl3Z Crosses Solar System on Hyperbolic Path

Biosignature Claims for Exoplanet K2-18b Face Mounting Challenges

NASA Orbiter Captures First Image of Curiosity Rover in Motion on Mars

Potential Biosignatures Detected on Exoplanet K2-18b

NASA Rovers Reveal Ancient Carbon Cycle and Water History on Mars

Study Sets Statistical Limits on Life's Prevalence in the Universe

New Study Finds Titan’s Ocean Could Support Only Tiny Microbial Life