New observations show that Jupiter is smaller than expected
The largest planet in our solar system may actually be smaller than we thought. New measurements taken by NASA’s…
Russian Scientists Test Plasma Engine That Could Cut Mars Travel to About 30 Days
Russia is quietly testing a new plasma propulsion system that, if it performs as claimed, could dramatically change…
NASA Detects Most Powerful Eruption Ever on Jupiter’s Volcanic Moon Io
Jupiter’s moon Io is covered in hundreds of volcanoes, which spew fountains of lava that constantly refill impact…
Is there anything ‘below’ Earth in space?
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China advances plans for dual solar system boundary missions
HELSINKI — China has published coordinated papers outlining dual missions to the solar system’s edge, suggesting the long-studied…
Scientist Puzzled by “Symmetric Jet Structure” on 3I/ATLAS
It may have made its closest approach to Earth last month, but the mysterious interstellar object 3I/ATLAS continues to…
Scientists Announce Results After Scanning 3I/ATLAS for Alien Signals
In July, researchers using the NASA-funded Asteroid Terrestrial-impact Last Alert System survey telescope in Chile made an exceedingly…
The year’s first meteor shower and supermoon clash in January skies | News
NEW YORK — The year’s first supermoon and meteor shower will sync up in January skies, but the…
From 3I/ATLAS to SWAN: How 2025 became the year of the comet
The year 2025 has captivated stargazers worldwide as three remarkable comets surged into the inner solar system, dazzling…
Comet 3I/ATLAS heads past Earth back into deep space
Dec. 19 (UPI) — Comet 3I/ATLAS passed its nearest point to Earth early Friday and approaching within 168…
Gemini North Telescope Captures New Images of 3I/ATLAS
On November 26, 2025, astronomers used the Gemini Multi-Object Spectrograph (GMOS) on the Gemini North telescope at Maunakea…
The Sun Survived a Close Call With 2 Massive Stars 4.4 Million Years Ago, Data Shows
In the early 1990s, the Hubble Space Telescope picked up something odd in the local clouds that surround…