JUST IN - The interstellar invader Comet 3I/ATLAS is continuing to surprise scientists, this time by brightening at an unexpectedly rapid pace as it made its closest approach to the sun.

 


- The post highlights the unexpected rapid brightening of interstellar comet 3I/ATLAS during its October 29, 2025, perihelion, captured by NASA's STEREO spacecraft, with scientists attributing it to unclear outgassing but noting its unusual blue hue from carbon-based gases.

- As the third confirmed interstellar object after 'Oumuamua and Borisov, 3I/ATLAS—discovered in July 2025—displays non-gravitational acceleration, suggesting volatile ices vaporizing intensely, per arXiv preprints and NASA reports.

- Now receding from the sun at 1.36 AU from Earth, the comet becomes ground-observable again, offering late December 2025 telescope views, while replies mix sci-fi jokes with scam alerts, reflecting public fascination with cosmic visitors. 

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