Lemon Slice nebula (IC - This false color image reinforces the common name of this most simple in structure of planetary nebulae. It is located light-years distant in the modern or constellation Camelopardalis
Complex planetary nebulas form when a star uses up all of the hydrogen in its core -- an event our Sun will go through in about five billion years. Image: X-ray: NASA/CXC/IAA-CSIC/N.Ruiz et al, Optical: NASA/STScI Caption: Chandra X-Ray Observatory
Combined visible and infra-red light images of star forming region Sharpless This nebula is located about light-years away in the direction of the constellation Cygnus. It formed less years ago, making this one of the youngest star-forming regions known.
This dramatic new image of cosmic clouds in the constellation of Orion reveals what seems to be a fiery ribbon in the sky. This orange glow represents faint light coming from grains of cold interstellar dust, at wavelengths too long for human eyes.