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

Fluffy strands of cosmic gas and dust illuminated by bright young stars form a beautiful cloudscape in a neighboring nebula.

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

Guns fired, a mechanical trumpet blared taps, and a folded flag was presented to Craig’s wife, all under a gray, cloudy sky.

From the bright lights and buzzy nightlife of Bangkok to some of Asia's most spectacular beaches, this is how to get the most ...

They can look similar to bubbles in soap or oil over water that give a rainbow appearance. They also have a similar appearance to the rainbow observed on a mother-of-pearl gemstone. Sign up for our ...

Sitting on the west-facing porch, I pointed to the evening star as it rose. Hello, meet spring of senior year. Hello, meet the razor edge of the future. “Tell me more about MIT,” I said.

Mississippi stargazers will be able to see 4 or 5 planets in the night sky with their naked eye this month. Will you be able ...

Planets will align on Feb. 28 in a semi-rare phenomenon that only occurs every few years. Can you see it in Georgia? Here's ...

The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.