In this incredible image, hot blue stars shine brightly in a recently formed galactic or “open” star cluster. This particular open cluster, NGC 3293, is located in the constellation Carina, which lies at a distance of about 8000-light-years from us. These blue stars are only about 6-million-years-old, whereas the cluster’s dimmer, redder stars appear to be about 20-million-years-old. Star formation in this open cluster took at least 15-million-years, a very short time when compared with the billions of years stars like our Sun live, and the over-ten billion year lifetimes of many galaxies and our universe. Continue reading for more.
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