Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

Scientists across the world, including some in Arizona, are keeping an eye on an asteroid that has a very slim chance of ...

A newly discovered asteroid being tracked by the global science community has a nearly 98% chance of zooming by Earth without ...

The city of Flagstaff has taken big steps to preserve the clarity of its night sky. Find out the best ways to experience the ...

Homolovi State Park was ranked among top road trip destinations in Arizona, and for good reason. Here's why you should make ...

Last fall, the scientific community went into a minor frenzy. A hunk of interstellar material had been sucked into the ...

An asteroid named 2024 YR4 has a 2.1% chance of striking Earth on December 22, 2032, with potential impact zones identified ...

The "Star Trek" legend's only son will discuss his memoir at the annual space-themed event.

At the Lowell Observatory, visitors can conjure their inner astronomer by peering through world-class telescopes and sitting in on lectures on topics like black holes and the history of Pluto.

The study analyzed the circumstellar disks of a pair of stars, learning about how planets are formed from some unexpected ...

2024 PT5 is the second near-Earth asteroid scientists suspect was ejected from the moon's surface, the first being 469219 ...