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Astronomers Detect Thin Atmosphere on Kuiper Belt Object 2002 XV93

The finding challenges current ideas about how small, cold worlds can hold gas.

Webb Maps Basaltic Surface of a Nearby Super-Earth and Finds No Atmosphere

Study Reports Tenuous Atmosphere on a 500-Kilometer Kuiper Belt World

Astronomers Flag 27 Possible Two‑Sun Planets With New TESS Timing Method

Stories older than 24h

Astronomers Pinpoint the Milky Way’s Star-Forming Edge at About 35,000–40,000 Light-Years

ALMA Finds Semi-Heavy Water in Interstellar Comet 3I/ATLAS

Interstellar Comet 3I/ATLAS Shows Extreme Heavy-Water Signal, Pointing to an Ultra‑Cold Origin

Interstellar Comet 3I/ATLAS Shows Extreme Heavy-Water Enrichment, Study Finds

Astronomers Measure Cygnus X-1’s ‘Dancing’ Black Hole Jets at 10,000 Suns of Power

JWST Detects Methane From Interstellar Comet 3I/ATLAS

Brightening Comet Pan‑STARRS Enters Pre‑Dawn View for Northern Skywatchers

Global Collaboration Pins Local Hubble Constant at 73.50 ± 0.81 km/s/Mpc With 1% Precision

JWST Spots Record-Low Metallicity in ‘Forbidden’ Giant Planet’s Atmosphere

Astronomers Identify Most Chemically Pristine Star Ever Observed

JWST Finds Metal-Poor Atmosphere on Giant Planet Around a Small Red Dwarf

NASA Unveils Paired Webb and Hubble Views of Saturn

Second Infant Planet Confirmed Forming Around Nearby Star WISPIT 2

Cornell Team Publishes Vetted List of 45 Rocky Exoplanets Most Likely to Host Life

Astronomers Reconstruct NGC 1365’s 12-Billion-Year Past With Extragalactic Archaeology

Cornell Catalog Identifies 45 Rocky Exoplanets in Habitable Zones