Related topics: stars · hubble space telescope

Image: 10 million star puzzle

When observed with the unaided eye, Omega Centauri, the object in this image, appears as a fuzzy, faint star. But the blue orb we see here is, in fact, a collection of stars—10 million of them. You cannot count them all, ...

Cluster

A cluster is a small group or bunch of something.

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