Science ❯Astronomy

Cosmology

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Ammonite: Newly Discovered Sednoid Expands Orbital Diversity and Narrows Planet Nine Search

The finding sets tighter limits on models of outer Solar System dynamics by revealing previously unseen variations among Sednoid orbits

Astronomers Observe First Solid Condensation of Rocky Planet Precursors Around Distant Star

First Solids of Planet Formation Observed Around Young Star HOPS-315

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High-Resolution Images Illuminate Ancient Interstellar Comet 3I/ATLAS

Chandra Observations Reveal Rapid Atmospheric Loss on Exoplanet TOI 1227b

New Distant Sednoid ‘Ammonite’ Casts Doubt on Planet Nine Hypothesis

Roman Space Telescope Survey Forecasts 100,000 Cosmic Explosions

Record-Breaking 225-Solar-Mass Black Hole Merger Challenges Formation Models

Researchers Prepare Infrared Search for Dark Dwarfs at Galactic Center

Trapped Jets in Massive Stars Revealed as Source of Fast X-Ray Transients

New BAO Analysis Strengthens Local Void Solution to Hubble Tension

Global Telescopes Capture Active Coma of Interstellar Comet 3I/ATLAS

UK’s CosmoCube Mission Moves Into Prototype Testing for Moon’s Far Side Observations

New 'Dark Dwarfs' Theory Proposes Substellar Objects Fueled by Dark Matter

Axion-Based Dark Energy Model Foresees Big Crunch in 33 Billion Years

Study Reveals Hidden Nano-Crystals in Space Ice

Astronomers Capture First Visual Proof of Double-Detonation in Type Ia Supernova Remnant

Interstellar Comet 3I/ATLAS Enters Inner Solar System

Rubin Observatory Unveils First Images and Activates Rapid Data Pipeline

Oort Cloud’s Largest Known Comet Unleashes High-Speed Carbon Monoxide Jets