Hi All,
For those with an interest in globular clusters, I found this the other day on Spaceref and went to the ESO page and found a little more detail there:
http://www.eso.org/public/outreach/p.../pr-45-09.html
It seems the globular cluster Terzan 5 might not be what we thought it was all these years (a classical GC) but is instead likely the remnant core of a dwarf galaxy that long, long ago merged with the Milky Way Galaxy.
Omega Centauri and M54 are also strongly suspected of being in this category for similar reasons.
Interesting.
Best,
Les D