Scientists estimate the object to be more than 12-miles-wide, speeding at 37 miles-per-second, relative to the sun.

Does the scientific community as a whole share the notion that a newly discovered interstellar object 3I/ATLAS is an alien ...

Scientists are exploring various proposals to repurpose existing spacecraft in order to chase after the interstellar object ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

The long-serving space telescope saw the third interloper to enter the solar system from beyond its limits late on Monday ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar ...

The comet 3I/ATLAS was discovered just as the Vera C. Rubin Observatory was gearing up to carry out its initial observations ...

Scientists are racing to learn as much as possible about the interstellar comet 3I/ATLAS before it fades from view forever ...