A retired Tucson heart doctor won a national amateur astronomy award for helping University of Arizona scientists detect some ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small and in the Milky Way, while Curtis took a more radical position that they ...

A very rare parade of planets is happening right now. Here are the planets that will be visible tonight and where to look for ...

DarkSky International has certified numerous places in Arizona for their efforts to preserve the night sky. Here's where to ...

Stargazers will get a peek at what's been called a "parade of planets," when up to seven planets may appear to line up.

Over 40 stars in a galaxy billions of light-years away were photographed, offering a glimpse into an era when the universe was only half as old as it is now. Astronomers using the James Webb Space Tel ...

The case of mistaken identity was quickly resolved, but astronomers say it shows the need for transparency around craft in ...

The LSST at Vera C. Rubin Observatory will utilize advanced sensors to explore dark matter, dark energy, and transient ...

Astrophotographers use sophisticated imaging technology to take and edit photographs that bring us the cosmos with startling ...

There’s nothing quite like looking up at the night sky. It’s always brought ... He recommends models like the Sky-Watcher AZ-GTi and Star Adventurer 2i; by keeping objects in view, they ...

Arizona has some ... There’s a new astronomy discovery centre there with an open-air rooftop planetarium. Travellers can gaze fully at the night sky from their own bed thanks to luxury eco ...