The mystery in question is related to the Ruprecht 106 glove collection shown in this photo. Although most of the stars that make up the globular clusters are all formed at about the same time and place, it turns out that almost all globular clusters contain constellations with distinct chemical compounds.
These unique chemical fingerprints are left by constellations of very different ages or named in all other collections. Several global clusters do not have such a large number of stars, and Ruprecht 106 is a member of this complex group.
Hubble photographed this star-studded image using various tools, including the Advanced Surveillance Camera (ACS). Like the stars in the galaxy, Hubble’s devices also have different generations: ACS is a third-generation tool that replaced the first Faint Object Camera in 2002. Hubble’s other agencies have also repeated three repetitions: replacing Wide Field Camera 3. Wide Field and Planetary Camera 2 (WFPC2) during the final Hubble service delivery. WFPC2 replaced the original Wide Field and Planet Camera, which was installed on Hubble during its launch.
Among its many achievements, ACS helped map the distribution of dark matter, discovered the farthest objects in the universe, searched for giant exoplanets, and studied the emergence of galaxies.