NASA has captured some of the most breathtaking star clusters in the universe, where countless stars shimmer like cosmic ...

Caldwell 71, or NGC 2477, is an open star cluster. Open clusters are loosely bound collections of stars. It is located roughly 4,000 light-years from Earth in the constellation Puppis.

Hubble Space Telescope Captures a Fascinating Cosmic Occurrence 'Blue Lurker' Star System 2,800 Light-Years From Earth In a ...

The term "blue" is a bit of a misnomer because the star's color blends in with all the other solar-mass stars in the cluster. Hence it is sort of "lurking" among the common stellar population.

A rare breed of star recently discovered by the Hubble Space Telescope spins faster by feeding on its stellar siblings.

Hubble beholds brilliant blue star cluster: NGC 2031 contains a sizable population of Cepheid variable stars (at least 14), which are stars that brighten and dim periodically. The stellar grouping ...

The term "blue" is a bit of a misnomer because the star's color blends in with all the other solar-mass stars in the cluster. Hence it is sort of "lurking" among the common stellar population.

Although the blue lurker looks like a classic sunlike ... for a sprinkling of curiously speedy stars. "A typical star in the cluster is rotating around once every 25 days," Emily Leiner, an ...