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Astrobiology

Extraterrestrial Life Exoplanets Habitability Planetary Sciences Planetary Atmospheres Mars Exploration Planetary Science Extraterrestrial Intelligence Search for Extraterrestrial Life Life Beyond Earth

Perseverance’s ‘Leopard-Spot’ Rock Tagged a Potential Biosignature as Fresh Skepticism Surfaces

Researchers say only Earth lab tests on Perseverance’s sealed Sapphire Canyon sample can determine whether biology or geology made the patterns.

Interstellar Comet 3I/ATLAS Tied to New Planet 'Seeding' Hypothesis

3I/ATLAS Shows Growing Tail and Rapid Brightening as Evidence Favors a Natural Comet

Hubble Spots White Dwarf Devouring Icy, Nitrogen-Rich Exo‑Pluto Fragment

NASA Confirms 6,000 Exoplanets, Marking a New Phase in the Search for Other Worlds

NASA’s Confirmed Exoplanets Top 6,000

Conference Model Points to Rare, Distant Technological Civilizations in the Milky Way

Mars’s Winter Polar Vortex Triggers Seasonal Ozone Buildup, Scientists Report

Perseverance Finds Potential Biosignature in Jezero Mudstones, Nature Study Reports

NASA Reports Potential Biosignatures in Jezero Crater Core

NASA Reveals Most Compelling Potential Mars Biosignature in Perseverance Rock Sample

Perseverance Detects Potential Biosignature in Jezero Crater Rock

JWST Spots Tentative Signs of an Atmosphere on TRAPPIST-1e

SwRI Says Interstellar Comet Flybys Are Achievable as 3I/ATLAS Defies Expectations

Gemini Images Show 3I/ATLAS Growing a Tail, Underscoring Natural Comet Status

New Rectangular Space Telescope Concept Targets Earth-Like Planets Within 30 Light-Years

New UC Santa Cruz Model Explains JWST’s Steam‑Rich Sub‑Neptunes

Webb and SPHEREx Map CO2‑Dominated Coma of Interstellar Visitor 3I/ATLAS

JWST Spots CO2-Dominated Coma in Interstellar Comet 3I/ATLAS

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