Panning over a VLT image of the cometary globule CG4

The cometary globule CG4 glows menacingly, like the gaping mouth of a gigantic celestial creature, in this pan video based on an image from ESO’s Very Large Telescope. What looks huge and bright in this image is actually a faint nebula and not easy to observe. The exact nature of CG4 remains a mystery. More information and download options: Credit: ESO. Music: movetwo