
This incredible photo of a ‘globular cluster’ (love that term!) called ‘Messier 55′ which is in the constellation of Sagittarius. It was taken by the ESO’s (European Southern Observatory) VISTA (Visible and Infrared Survey Telescope for Astronomy) infrared survey telescope.
The cluster is made up of tens of thousands of stars exceedingly close together, like a swarm of bees. About 160 globular clusters have been found in our galaxy, the Milky Way, mostly toward the centre.
That looks like a lot of stars huh? But what really blew my mind was the video below (also from ESO) showing just how SMALL it is in the milky way!
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