Hubble Space Telescope image of the globular cluster M80 (NGC 6093), showcasing a dense concentration of stars. Many are older and redder than our sun, but the presence of numerous blue stragglers—younger stars formed from stellar collisions—indicates a high collision rate at the cluster's core.

Astronomy Picture from 07/07/1999

M80: A Dense Globular Cluster

Source: https://apod.nasa.gov/apod/ap990707.html


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