Interstellar Comet 3I/ATLAS Reaches Perihelion, Observed by Solar Fleet
Interstellar Comet 3I/ATLAS reaches perihelion October 30, 2025. Learn why only SOHO, STEREO, and Parker Solar Probe can observe this rare event.
3I/ATLAS
Interstellar Object 3I/ATLAS Faces Solar ‘Acid Test’ at Perihelion in October 2025
Interstellar object 3I/ATLAS reaches perihelion on October 29, 2025, passing closer than Mercury. Read why this is the ‘acid test’ for its composition.
Interstellar Object 3I/ATLAS Begins Cometary Activation Near Mars Orbit
The third confirmed interstellar object, 3I/ATLAS, is growing a tail as it approaches the inner solar system. Learn why this cometary activation is vital for science.
Interstellar Object 3I/ATLAS Confirmed as Comet by Giant Jet Aimed at Sun
New images of the interstellar object 3I/ATLAS reveal a massive jet of gas and dust aimed at the Sun, confirming its cometary nature. Learn what this means for objects from outside our solar system.
Interstellar Object 3I/ATLAS Undergoes Key Test of ‘Alien Mothership’ Hypothesis
Interstellar object 3I/ATLAS is undergoing a critical test near the Sun, challenging the ‘alien mothership’ hypothesis. See what astronomers are watching for.
Interstellar Comet 3I/ATLAS Develops Peculiar Solar Tendril
An interstellar comet, 3I/ATLAS, has developed a mysterious tendril pointing towards the Sun, perplexing astronomers. Learn about this unique celestial event.
Interstellar Visitor 3I/ATLAS Prepares for 2025 Solar Conjunction
Discover the 2025 solar conjunction of interstellar object 3I/ATLAS. Learn about its significance, observational challenges, and what scientists hope to uncover about this cosmic visitor. Read more!
Interstellar Object 3I/ATLAS Reveals Rare ‘Anti-Tail’
New observations confirm interstellar object 3I/ATLAS has a rare ‘anti-tail.’ Discover what this means for understanding comets from beyond our solar system.