Previously unseen details of a mysterious, complex structure within the Carina Nebula (NGC 3372) are revealed by this image of the Keyhole Nebula, obtained with NASA's Hubble Space Telescope. This region, about 8000 light-years from Earth, is located adjacent to the famous explosive variable star Eta Carinae, which lies just outside the field of view toward the upper right. Buy this as a superb wall poster, a canvas print or a framed print.