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Experts confirmed the discovery of a rare interstellar visitor—only the third ever detected—hurtling through our Solar System ...

The paper presented several anomalous characteristics of the object, which could indicate that it is not a comet at all but instead a directed craft.

Any uncertainty in the calculation of the object’s orbit causes variations in the predicted solution. Instead of one precise ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, speeding through our celestial neighborhood.

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

NASA scientists have confirmed that a mysterious object shooting toward us through the solar system is an "interstellar object" — only the third of its kind ever seen.

3I/ATLAS is only the third interstellar object ever detected. You can stream the object live today, or maybe see it from your own telescope!

Astronomers are reporting the detection of a large object entering our solar system, and it is causing quite the stir in the scientific community.

Astronomers are monitoring an object headed our way that may have wandered over from another star system. Scientists have discovered what might be only the third known interstellar object to pass ...