The space agency got a close look at the interstellar visitor over the past few months as it zipped by Mars and the sun ...

The object is the third interstellar visitor to our solar system ever confirmed. It will reach its closest point to Earth ...

A flying piece of cosmic rock or an alien threat?Questions on whether the comet could actually be an alien spacecraft are ...

NASA's Perseverance rover discovers shiny metallic rock on Mars that could be a meteorite from an ancient asteroid, ...

NASA released a trove of never-before-seen images of the interstellar comet 3I/ATLAS, unveiling new characteristics of the ...

NASA is providing more images and information about the interstellar object that's passing through our solar system right now ...

The rare interstellar comet, also known as 3I/ATLAS, was first discovered in July and has been photographed several times.

It's possibly as big as Manhattan, likely older than our own solar system, and it's traveling through space at speeds of up ...

NASA spacecraft across the inner solar system captured new views of Comet 3I/ATLAS—the third known interstellar object ...

While none of the spacecraft have cameras perfectly designed to spot comets zipping by at speeds up to about 153,000 miles per hour (246,000 kilometers per hour), astronomers didn’t want to miss what ...

NASA aimed to set the record straight on the nature of the 3I/ATLAS during a press conference held on Wednesday evening. The ...