Two planets stand side by side as the evening twilight continues to delight and colorful stars shine in the sky this week.

From road-tripping adventurers to luxury resort goers, more travelers are seeking the stars than ever before. Saudi Arabia is hoping to become the Middle East’s top astrotourism destination: it’s home ...

The National Park Service is hosting its annual Death Valley Dark Sky Festival beginning Friday, Feb. 21 through Sunday, Feb.

Arizona's dark skies are a haven for astronomers and photographers. Some communities are fighting to keep them that way.

Astronomers have studied 3,600 supernovas to discover diversity in exploding white dwarf stars, a vital tool in the ...