"If this is how the agency handles one of its most high-profile flagship missions, how many other missions are in imminent ...

The Orion crew module gets stacked onto the Space Launch System in preparation for the upcoming Artemis 2 mission in early ...

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

From measuring one's mass to boosting the almost 1 million pounds that comprise the entire orbiting complex, the Expedition ...

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 has released close-up images of interstellar comet 3I/ATLAS after being delayed during the government shutdown. NBC News ...

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

A team of researchers has confirmed stars ring loud and clear in a "key" that will harmonize well with the science goals and ...

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

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

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

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