How to use the Summer Triangle stars — Vega, Deneb and Altair — as a key to unlock your understanding of the night sky.

Gaze at the night sky enough, and you'll begin to find all kinds of geometric patterns among the stars. Points are easy; so are lines connecting two stars. Another easy pattern is a triangle, since ...

Looking for a sky event this week? Check out our full Sky This Week column. July 14: Mars sits north of Aldebaran Now that ...

Summer is the best time to see this configuration of three bright stars, and they will guide stargazers toward four other celestial sights that require a telescope to see.

As darkness falls on these balmy July evenings, the famous "Summer Triangle" is high in the eastern night sky. This seasonal triangle is composed of three of the brightest stars in the night sky, each ...

The summer Milky Way overhead and through the Summer Triangle stars in July, looking up through trees in Banff National Park at Herbert Lake Deneb is at top left, Vega at top right, and Altair is at ...

The summer Milky Way overhead and through the Summer Triangle stars in July, looking up through trees in Banff National Park at Herbert Lake. (Photo by: Alan Dyer/VW Pics/UIG via Getty Images) There ...