Blue stragglers, formed from the merger of two old red stars, shine with greater mass and a bluer hue, a theory confirmed by ...

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.

The elliptical galaxy NGC 4660 is one of a hundred galaxies imaged by Hubble that are members of the nearest large galaxy cluster to Earth, the Virgo Cluster. NASA’s James Webb Space Telescope has ...

An investigation using the star-surveying Gaia space telescope ... supergiants in the clusters to those of the younger blue ...

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.

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 ...

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

Get Instant Summarized Text (Gist) The Hubble Space Telescope has provided detailed observations of the supermassive open cluster Westerlund 1, located 13,800 light years away. With a mass of ...

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 ...