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

NASA released images of an interstellar comet flying past Mars, and scientists expressed doubt about the possibility that it ...

NASA has released a long-awaited collection of new photos of comet 3I/ATLAS, the interstellar visitor that has been making ...

On Wednesday, Nov. 19, NASA will unveil more 3I/ATLAS images captured by the space agency's fleet of instruments both on the ...

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

As far as physical features, NASA says 3I/ATLAS has speed, color, and direction that are, “consistent with what we’d expect ...

"It's going to look different because it didn't come from our solar system and that's what makes it so magical." ...

NASA is unveiling close-up pictures of the interstellar comet that's making a quick one-and-done tour of our solar system.

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

A comet hurtling through the solar system from interstellar space is exactly what it appears to be, NASA officials said Wednesday, moving to quash a wave of online speculation.

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

The unusual comet—which is to pass Earth again in the coming weeks—is only the third known object to visit us from outside ...