Science ❯ Astrobiology

Search for Extraterrestrial Life

Mars Habitability Habitability Mars Exploration Mars Missions Planetary Conditions Microbial Life Habitability Criteria Biosignatures Technosignatures Ancient Life on Mars

Artemis II Restores Toilet Function After Frozen Vent Fix

In‑flight fixes plus backup gear kept the mission on track despite toilet glitches.

Cornell Catalog Identifies 45 Rocky Exoplanets in Habitable Zones

Astronomers Tie Distant Star’s Chaotic Fading to Evidence of a Planetary Collision

Study Ties Planetary Habitability to a Narrow Oxygen Window in Core Formation

Bennu Samples Show Amino Acids Likely Formed in Icy, Radioactive Environments

Study Finds Planetary Oxygen at Birth Controls Life-Critical Phosphorus and Nitrogen

Earth-Sized Exoplanet Candidate Found 146 Light-Years Away Around a K-Dwarf

Kepler Archive Yields Earth-Size Planet Candidate with Yearlike Orbit

Kepler Data Reveal Earth-Size Planet Candidate HD 137010 b Near Star’s Habitable Edge

SPHEREx Detects 20-Fold Post-Perihelion Surge in Interstellar Comet 3I/ATLAS

NASA Picks Industry Teams as Proposed Funding Boost Speeds Habitable Worlds Observatory

Radio Search Finds No Signal From Interstellar Comet 3I/ATLAS as Hubble Images Twin Jets

New Study Recasts Titan’s Interior, Challenging Idea of a Global Ocean

National Academies Sets Science-First Blueprint for Human Mars Missions

‘Fire Amoeba’ Sets Eukaryotic Heat Record at 63°C

Perseverance Records First Direct Electrical Discharges on Mars

AI Detects Chemical Signatures of Life in 3.3-Billion-Year-Old Rocks

New MRO Radar Maneuver Undercuts Mars South Pole ‘Lake’ Claim

Perseverance Spots Iron-Nickel Rock in Jezero, Pointing to Possible Metallic Meteorite

Lab Experiments Show Sub‑Neptunes Can Make Their Own Water