Science ❯Astrobiology

Extraterrestrial Life

Habitability Mars Habitability Mars Exploration Planetary Conditions Mars Ocean Worlds Microbial Life Alien Technology Biosignatures Planetary Atmospheres

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.

Nature Study Shows Thioester Chemistry Linked Amino Acids to RNA Under Early-Earth Conditions

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

Spacecraft Observations Sought as Loeb Raises Nuclear-Powered Theory for Interstellar Object 3I/ATLAS

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

Sharp Hubble Images Confirm 3I/ATLAS as Comet; Juno Intercept Study Advances

Ionic Liquids Emerge as Candidate Habitats on Water-Scarce Worlds

Curiosity Captures Coral-Like Mineral Pseudofossil in Gale Crater

Curiosity Rover Reveals Coral-Like Rock Paposo as Ancient Mineral Vein

Mission Studies Spotlight Juno Flyby of Interstellar Comet 3I/ATLAS

Cosmic Rays Could Power Life on Europa, Enceladus and Mars, Studies Find

Deepest Chemosynthetic Ecosystems Discovered More Than 31,000 Feet Below Pacific Surface

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

Cosmic Rays Can Sustain Subsurface Life in New Radiolytic Habitable Zone

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

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

ALMA Detects 17 Complex Organic Molecules in V883 Orionis Protoplanetary Disk

Science Retracts Landmark Arsenic Microbe Paper Under Expanded Standards

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

Largest Interstellar Visitor 3I/ATLAS Confirmed as Active 20-Kilometer Comet