The international team of astronomers reports that all of the types of ice in the comet appear to be sublimating. This is the phase change where a solid turns into a gas, skipping the liquid phase.

2025 marked the first official year of our newest citizen science effort, Satellite Surveillance, which delivered major ...

3I/ATLAS is the third interstellar visitor ever to visit the solar system having been formed around a distant star. Tune in ...

It might be the comet of the year and outshine its predecessors.

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Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no ...

Astronomers at NASA and the Gemini North Observatory have released new images of 3I/ATLAS, revealing a vivid green glow that underscores the object's alien origins and fleeting passage through the ...

The response came after John Greenewald Jr., an American researcher and ufologist, requested any CIA "assessments, reports, or communications" referencing the interstellar object, only the third of ...

Add Yahoo as a preferred source to see more of our stories on Google. Several of NASA's space-based missions have observed Interstellar Comet 3I⧸ATLAS. As it approaches Mars, orbiters and rovers may ...

Interstellar comet 3I/ATLAS is seen in this composite image captured on Nov. 6 by the Europa Ultraviolet Spectrograph instrument on NASA’s Europa Clipper spacecraft, from a distance of around 102 ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Robert Lea (created ...

"We all would have been thrilled to find technosignatures coming from 3I/ATLAS, but they're just not there." When you purchase through links on our site, we may earn an affiliate commission. Here’s ...