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Astronomers find interstellar comet 3I/ATLAS hiding in images taken before its official discovery

Interstellar comet 3I/ATLAS was almost called 3I/Rubin, after researchers found that the giant survey telescope ...

Surrounded by stardust: Antarctic ice cores confirm Earth is accumulating iron-60 from local interstellar cloud

Our solar system is currently passing through the Local Interstellar Cloud, a region of highly diluted gas and dust between ...

Dual spacecraft capture both hemispheres of interstellar comet 3I/ATLAS at once

The Southwest Research Institute-led Ultraviolet Spectrograph (UVS) instruments aboard ESA's Jupiter Icy Moons Explorer ...

Interstellar Comet 3I/ATLAS Came From a Place Nothing Like Our Solar System

A rare comet from another star system is revealing just how different alien solar systems may be from our own.
Smithsonian Magazine

Interstellar Comet 3I/ATLAS Came From an Extremely Cold, Lonely Region of the Milky Way Galaxy, New Research Suggests

Astronomers analyzed the vapors coming off the comet when it neared the sun and found it had a lot of "heavy" water. That hints it grew up in a frigid planetary system, possibly before its home star f ...

Interstellar comet came from a much different solar system than ours

The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place before our solar system existed.