A Harvard University astrophysicist has sparked a furious debate by warning he cannot rule out that extraterrestrials are ...

3I/ATLAS, interstellar comet or alien spacecraft, will fly by Mars in October 2025. It will give space scientists a rare chance to study material that may be older than the solar system. The European ...

The interstellar comet 3I/ATLAS is just days away from coming as close to Earth as it will ever get. Here's how you can track ...

The mysterious interstellar object traveling through our solar system has been spotted acting like no other comet ever seen before, revealing its alien origins. Scientists from Michigan State ...

Astronomers are preparing for a rare observational opportunity as interstellar comet 3I/ATLAS approaches its closest point to ...