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

NASA officials dismissed theories that the interstellar 3I/ATLAS could be an alien spaceship while dropping new photos of the ...

NASA's treasure trove of new comet 3I/ATLAS images provides hotly anticipated views of the interstellar visitor, including ...

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

After weeks of silence, NASA has officially dismissed speculation that 3I/ATLAS has anything to do with aliens.

Comet 3I/ATLAS was discovered on July 1 by the Asteroid Terrestrial-impact Last Alert System (ATLAS). Its previous best ...

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

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

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

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

With the government reopened, the space agency at last released pictures captured by a fleet of government spacecraft of an ...