I/ATLAS is making its closest approach to Mars today, which could offer a chance to capture the clearest images yet of the unusual comet.

Orbiting telescopes, astronauts and spacecraft are sending back a stream of photos that show off the diversity and wonder of the universe. Here are some of the best space photos of the year, so ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which ...

Need a refresher about 3I/ATLAS? Here's everything to know about the interstellar object, including when the latest observations will be made.

Key Takeaways Today’s Mars flyby of interstellar object 3I/ATLAS is shrouded in mystery as NASA remains quiet during a federal shutdown. A YouTuber known as “Dobsonian Power” captured an image ...

The third interstellar object ever detected in the solar system will make a close approach to Mars, giving the opportunity for spacecraft and orbiters around the red planet to capture the interstellar ...