Hubble Space Telescope image of the central region of NGC 6397, a globular star cluster. The brighter blue stars near the center are likely the result of stellar collisions, forming "blue stragglers" more massive than other stars in the cluster. This provides evidence of star collisions in dense stellar environments.
Astronomy Picture from 08/08/2003
Blue Stragglers in NGC 6397
Source: https://apod.nasa.gov/apod/ap030808.html
#StarCollisions #GlobularCluster #NGC6397 #HubbleSpaceTelescope #BlueStragglers #StellarEvolution #Astronomy #Astrophysics #Space #Cosmology
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