The giant cluster Omega Centauri hosts millions of stars and may be the remains of a small galaxy. The false-color ultraviolet composite from images taken through Swift UVOT's ultraviolet filters reveals a treasure trove of rare stars in various stages of demise. Too see more photos, click on the image above.
The Crab Nebula is the wreckage of an exploded star, or supernova, observed in the year 1054. The expanding cloud of gas is located 6,500 light-years away in the constellation Taurus. This composite of three Swift UVOT ultraviolet images highlights the luminous hot gas in the supernova remnant. The image is constructed from exposures using these filters: uvw1, centered at 2,600 angstroms (shown as red); uvm2, centered at 2,246 angstroms (green); and uvw2, centered at 1,928 angstroms (blue).
NGC 7331 is a luminous edge-on spiral galaxy about 45 million light-years away in the constellation Pegasus. A view of the Milky Way galaxy from the outside might look very similar to this NGC 7331 galaxy. At left and center, respectively, are Swift images captured through the Ultraviolet/Optical Telescope's optical and ultraviolet filters. The panel at right shows X-ray observations (0.2-10 keV) from Swift's X-ray Telescope.