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 ...

Around 13.7 billion years ago, something collapsed. It fell outward into the nothingness that stretched in every direction, leaving something behind. A dense plasma, made of fundamental particles ...

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

If you know how OLED displays work, you know about one of their greatest strengths: Individual pixels can be shut off, ...

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

"The diversity of ways that white dwarf stars can blow up is much greater than previously expected." There are a lot of ways ...