Stars the size of the Sun typically end their lives as tiny and faint white dwarf stars. But as they make the final transition into retirement their atmospheres are blown away into space.
NASA's Hubble Space Telescope has snapped a striking picture of planetary nebula NGC 5189.
European Space Agency astronomers have found evidence for a dying sun-like star coming back to life - something they say may happen to our own sun in a few billion years.
NASA’s Hubble telescope has captured a breathtaking image of planetary nebula NGC 7026.