XMM-Newton Image Gallery visible in Google Earth
The XMM-Newton Gallery, a collection of astronomical images and spectra taken with the XMM-Newton X-ray and optical instruments, (see http://xmm.esac.esa.int/external/xmm_science/gallery/public/ ) can be displayed, since the 24th of August, in association with the corresponding celestial target objects in the latest version of Google Earth:
You will have to download the Google Earth file format (KML) file xmm_gallery.kmz, available at http://xmm.esac.esa.int/external/xmm_science/gallery/images/xmm_gallery.kmz
and load it into Google Earth.
'Switch to Sky' from the Google Earth 'View' menu and enjoy the XMM-Newton Gallery projected onto the sky.