Here is a paper that just came out on the astrophysics preprint archive reporting on the results of a search for exoplanets in the Milky Way globular cluster Omega Centuri: http://arxiv.org/abs/0710.3461 Here is the title: THE FREQUENCY OF LARGE RADIUS HOT AND VERY HOT JUPITERS IN ! CENTAURI
I remember reading another paper several years ago--more toward the beginning of this decade--which talked about the chances of planets existing in the Magellenic clouds. The assumption: lower metallicity suppresses planet formation. The conclusion was negative--that is, the fraction of stars with planets in these satellites is probably smaller than the fraction of stars with planets in the galactic disk and bulge. Does anyone remember this paper (sorry for the vague reference)? What are the chances of ETs starring "down" at us from the Magellenic clouds, say?