Kim officially became an astronaut in 2017. Expedition 72 and Expedition 73 marked Kim’s first visit to the ISS, where he ...

NASA astronaut Jonny Kim flew home with two Roscosmos cosmonauts from the International Space Station packed tight in their ...

The 84-foot-diameter space rock—dubbed "2025 XM"—is hurtling through the solar system at a zippy 9,753 miles per hour.

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. Here's a look at the latest photo of the intriguing ...

Comets are not the only celestial bodies with tails. Earth and Mercury also possess them, formed by different mechanisms.

NASA astronaut Jonny Kim, who was born and raised in Los Angeles, returned to Earth Tuesday after 245 days in space. Kim and ...

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

Asteroid 2025 XF1 is hurting through the solar system at nearly 8,000 miles per hour, according to the spacy agency.

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's ...

NASA’s TRACERS mission begins early science measurements in Earth’s southern polar cusp, tracking magnetic reconnection and ...

Astronomers have followed 3I/ATLAS since its discovery on July 1. Hubble photographed it on July 21 from 277 million miles ...

I/ATLAS attracted attention when it was confirmed to be only the third body originating from another star system.