In the heart of the Rosette Nebula [ http://antwrp.gsfc.nasa.gov/apod/ap020317.html ] lies a bright open cluster [ http://www.seds.org/messier/open.html ] of stars that lights up the nebula. The stars of NGC 2244 [ http://www.seds.org/messier/xtra/ngc/n2244.html ] formed from the surrounding gas only a few million years ago. This just-released image taken by the CFHT [ http://www.cfht.hawaii.edu/CFHT/Tour/Summit/index.html ]'s new MegaPrime camera [ http://www.cfht.hawaii.edu/Instruments/Imaging/Megacam/ ] shows the region in unprecedented detail. Although the emission nebula [ http://antwrp.gsfc.nasa.gov/apod/emission_nebulae.html ] is dominated by red hydrogen [ http://pearl1.lanl.gov/periodic/elements/1.html ] light, the above image [ http://www.cfht.hawaii.edu/News/MegaPrime/MegaPrime-PR-AstroImage-Rosette.html ] has exaggerated the effect of green light emitted primarily by small amounts of oxygen [ http://pearl1.lanl.gov/periodic/elements/8.html ]. A hot wind [ http://www-istp.gsfc.nasa.gov/Education/wsolwind.html ] of particles streams away from the cluster stars and contributes to an already complex menagerie of gas and dust [ http://nedwww.ipac.caltech.edu/level5/Mathis/Mathis1.html ] filaments while slowly evacuating the cluster center. The Rosette Nebula [ http://antwrp.gsfc.nasa.gov/apod/ap010214.html ]'s center measures about 50 light-years [ http://chandra.harvard.edu/photo/cosmic_distance.html ] across, lies about 4500 light-years away, and is visible with binoculars towards the constellation of Monoceros [ http://www.astronomical.org/constellations/mon.html ].