Comet Nishimura came into NASA's STEREO-A spacecraft's field of view. The solar wind was interacting with the tail of the ...

New photos, including a striking technicolor timelapse, show off the newly discovered interstellar object 3I/ATLAS as it ...

NASA STEREO-A satellite's SECCHI/HI-2 camera captured this imagery of Comet C/2021 A1 (Leonard) Credit: Space.com | footage ...

Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...

July 3 (UPI) -- NASA discovered the third interstellar comet through a survey telescope in Rio Hurtado, Chile. The interstellar comet first observed on Tuesday by NASA's Asteroid Terrestrial-impact ...

A rare visitor from another star system has been spotted: the interstellar comet 3I/ATLAS! It was detected July 1 by the NASA ...

A comet the size of Manhattan has been detected hurtling through the solar system, marking only the third time an interstellar object has been observed from Earth. This was confirm ...

It’s officially the third known interstellar object to pass through our solar system and poses no threat to Earth.

Blue Origin on Thursday confirmed that NASA 's next Mars mission will be launched by the New Glenn rocket on its second ...

Comet 31/ATLAS, a rare interstellar object, may be 7 billion years old and could reveal secrets about the early Milky Way and planetesimal formation processes.

NASA's Voyager spacecrafts won't reach the inner Oort Cloud for another 300 years -- and it could take them 30,000 years to pass through it. But each comet that approaches the sun reveals more ...

Astronomers hope images of C/2019 Y4 (ATLAS), taken by the Hubble Space Telescope in April, could help us to understand what causes a comet to break apart.