A mysterious celestial visitor is forcing scientists to rethink everything they thought they knew about comets. The interstellar object 3I/ATLAS has delivered a wave of contradictory data since its ...

The discovery of the interstellar comet 3I/ATLAS was supposed to be a triumph of open science, a rare chance to study material from beyond the solar system in real time. Instead, it has become a ...

Harvard physicist Avi Loeb is once again pushing back against how the government handles space mysteries. He argues that when it comes to things like the interstellar object 3I/ATLAS, intelligence ...

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. NASA's Hubble Space Telescope reobserved interstellar comet 3I/ATLAS Nov. 30, with its Wide Field Camera 3 instrument. (NASA, ESA, ...

The ATLAS theories are all over the map. With 3I/ATLAS slated to fly-by Earth tomorrow, theories over its nature have hit a fever pitch. A new study asserts that our interstellar visitor behaves like ...

Experts Split as Viral Images of 3I/ATLAS Show Features Never Seen in a Natural Comet 3I/ATLAS suddenly 'wakes up' in deep space, the European Space Agency's (ESA) JUICE spacecraft has captured the ...

This striking image from the science camera on ESA's Jupiter Icy Moons Explorer (Juice) shows interstellar comet 3I/ATLAS spewing dust and gas. The tiny nucleus of the comet (not visible) is ...

An assessment published this week on the isotopic composition of interstellar comet 3I/ATLAS suggests an intriguing possibility: The comet may be between 10 and 12 billion years old, making it roughly ...

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When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took notice. And so did scientists involved in the search for extraterrestrial ...