The globular cluster NGC 6388, observed by the NASA/ESA Hubble
Space Telescope This image from the NASA/ESA Hubble Space
Telescope shows NGC 6388, a dynamically middle-aged globular
cluster in the Milky Way. While the cluster formed in the
distant past (like all globular clusters, it is over ten billion
years old), a study of the distribution of bright blue stars
within the cluster shows that it has aged at a moderate speed,
and its heaviest stars are in the process of migrating to the
centre. A new study using Hubble data has discovered that
globular clusters of the same age can have dramatically
different distributions of blue straggler stars within them,
suggesting that clusters can age at substantially different
rates. NASA, ESA, F. Ferraro (University of Bologna) About the
Image |Release date:||19 December 2012, 19:00| |Size:||4278 x
4197 px| About the Object |Type:||• Milky Way : Star : Grouping
: Cluster : Globular| • X - Star Clusters |Distance:||35000
light years| Colours & filters |Hubble Space Tele