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Planetary Science

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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.

SpaceX Debuts New Falcon 9 as Starlink Launch Kicks Off Crowded Week

Webb Spots Tiny New Uranian Moon, Lifting Planet’s Count to 29

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

Study Proposes Dark Matter Could Spawn Planet-Devouring Black Holes Inside Gas Giants

Webb Uncovers Provisional Saturn-Mass Exoplanet in Alpha Centauri A’s Habitable Zone

NASA Seeks Industry Feedback for 100 kW Lunar Fission Power System

Webb Telescope Rules Out Atmosphere on Earth-Sized Exoplanet TRAPPIST-1 d

James Webb Uncovers Massive Early Galaxies and a Fading Exoplanet Candidate

Alpha Centauri A’s Suspected Gas Giant Evades 2025 JWST Searches

Five Papers Showcase NIRPS’s Exoplanet Discoveries and High-Precision Performance

Researchers Estimate 3I/ATLAS Interstellar Comet Is Over Seven Billion Years Old

New Projections Confirm Record-Short Days This July and August

Gas Giant HIP 67522 b Triggers Intense Stellar Flares, Accelerating Its Atmospheric Loss

James Webb Captures First Direct Image of Saturn-Mass Candidate TWA 7b

James Webb Space Telescope Captures First Exoplanet by Direct Imaging

James Webb Directly Images Young Saturn-Mass Exoplanet in Disk

Webb Reveals Silicate Clouds and Moon-Forming Disk in YSES-1 System

Saturn-Sized Exoplanet Orbits Record-Low Mass Star, Challenging Formation Theories

Saturn-sized Gas Giant Orbits Record-low-mass Red Dwarf, Defying Formation Models