Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice ...

“Comet 3I/ATLAS was full-on erupting into space in December 2025, after its close flyby of the Sun, causing it to ...

Nearly all of the solar system’s planets are about to file across the night sky in a planetary alignment, and it will be ...

Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that ...

The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's observations.

A group of astronomers has found a solar system 116 light-years from Earth that seems to challenge current theories about how ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

A rare "planet parade" will happen soon. Here's when and where to look in Louisville.