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

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

A cosmic visitor is stirring an earthly debate. A Harvard astrophysicist has suggested the incoming interstellar object ...

Its path through space will take it between the orbits of Earth and Mars before it heads back out toward interstellar space ...

Massive interstellar object 3I/ATLAS, larger than Manhattan, shows unusual glow pattern and planetary alignment that Harvard physicist calls potentially technological.

A controversial new paper questions whether the interstellar object 3I/ATLAS is a potentially dangerous alien probe, similar ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to ...

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...

A newly discovered interstellar comet, 3I/ATLAS, has sparked debate in the scientific community after Harvard astrophysicist ...

I/ATLAS is just the third recorded interstellar object to enter the solar system. However, the scientific consensus is that ...

Detailed photos from the newly operational Vera C. Rubin Observatory have revealed that the recently discovered interstellar ...

The latest observations of 3I/ATLAS suggest it resembles comets from the outer reaches of our solar system, but may be ...