NASA/ESA Hubble Space Telescope has taken a new image of the Egg Nebula, a bipolar preplanetary nebula located about 3,000 light years away. The Egg Nebula (ESA / Hubble / NASA) The preplanetary nebula phase is a short period in the cycle of stellar evolution – over a few thousand years, the hot remains of the star in the center of the nebula heat it up, excite the gas, and make it glow as a planetary nebula. The short lifespan of preplanetary...
