Watch footage of China's Zhurong rover moving on the Martian surface. It was captured by a camera the rover deployed on Mars.

Comet 3I/Atlas is just the third known object to visit us from outside our solar system. So yes... we'll be talking about aliens.

Sky This Week is brought to you in part by Celestron. Friday, December 19We're getting ready to say goodbye to the summertime ...

Comet 3I/ATLAS is the third known interstellar comet after 2017's 1I/'Oumuamua and 2019's 2I/Borisov. It was discovered on July 1, 2025 and made its closest approach to the sun in October. Now it is ...