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Solar System

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New dwarf planet discovery complicates Planet Nine hypothesis

Rice University simulations give Planet Nine a 40% existence probability, raising stakes for the Vera Rubin Observatory’s first deep-sky survey.

Geomagnetic Storm Keeps Aurora Borealis Glowing Over Northern U.S. Wednesday Night

Researchers Warn Venus Co-Orbital Asteroids Could Endanger Earth

Study Reveals Jupiter’s Early Size and Magnetic Power

Newly Cataloged Extreme Trans-Neptunian Object Challenges Planet Nine Hypothesis

Study Reveals Jupiter’s Early Size and Magnetic Strength Far Surpassed Current Levels

Webb Telescope Confirms First Extraterrestrial Water Ice in Young Star System

NASA Confirms Uneven Lunar Interior with New Gravity Map

NASA’s 2024 Solar Eclipse Broadcast Earns Two Emmy Nominations

Astronomers Identify Potential Planet Nine Candidate from Archival Infrared Data

Elon Musk Declares Mars Colonization Humanity's 'Life Insurance' as Starbase Becomes an Incorporated City

Astronomers Identify Prime Candidate for Hypothetical Planet Nine

NASA’s Lucy Spacecraft Captures High-Resolution Images of Asteroid Donaldjohanson

NASA's Lucy Mission Captures Detailed Images of Asteroid Donaldjohanson

Comet SWAN Disintegrates Near Sun, Dashing Hopes for Naked-Eye Viewing

NASA's Lucy Spacecraft Prepares for Close Flyby of Asteroid Donaldjohanson

Oxford Study Challenges Asteroid Theory of Earth's Water Origin

Comet C/2025 F2 (SWAN) Illuminates Pre-Dawn Skies Ahead of Solar Encounter

Asteroid 2024 YR4 Poses Small Risk of Lunar Impact

Solar Wind Compression Heats Jupiter's Atmosphere, Revealing Global Effects