Far from the planets and familiar constellations, an interstellar visitor is pulsing with a rhythm that looks uncannily like ...

Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

The mysterious return of 3I/ATLAS has reignited global attention as discreet planetary defence drills quietly take place ...

Far beyond the bright planets, in the dim outskirts of the Solar System, astronomers keep stumbling on objects that refuse to ...

Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought ...

Earlier this week, NASA officials released long-delayed images of interstellar visitor 3I/ATLAS. One of the shots, taken by ...

Interstellar comet 3I/ATLAS shows odd traits—anti-tail, strange acceleration, unusual chemistry—prompting scientists to warn ...

3I/ATLAS showed a complex tail structure early this morning of November 8, 2925. It was observed at 29 degrees elongation from the Sun. In July and August , other researchers calculated that 3I Atlas ...

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At first, the dot looked like any other star. Then the astrophysicists switched to polarized light and found themselves looking at an entirely unexpected sight. “Everything else disappeared, even the ...

Scientists using NASA's James Webb Space Telescope now think the "little red dots" spotted in the early universe could be a new kind of space object. They call it a "black hole star." Credit: T.