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

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

"The consequences, should the hypothesis turn out to be correct, could potentially be dire for humanity," said Avi Loeb.

However, we might also want to look for hints of alien origin. One very strong piece of evidence would be any kind of radio ...

New photos, including a striking technicolor timelapse, show off the newly discovered interstellar object 3I/ATLAS as it ...

The Gemini North telescope in Hawaii recently snapped a close-up of the comet that's captured the world’s attention.

The photos reveal a bright and well-developed coma, the cloud of gas and dust surrounding the comet's nucleus, with striking ...

Given 3I/ATLAS' highly eccentric orbit, this will be its one and only visit to our solar system, as its trajectory does not ...

Most comets, including the well-known Halley's, loop through our solar system like cosmic time capsules that formed alongside ...

You can watch comet 3I/ATLAS live online tonight (July 3), thanks to the Virtual Telescope Project, which will livestream ...

Comet 3I/ATLAS is expected to make its closest pass by the Sun on Oct. 30, when it will fly 130 million miles inside the ...

Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...