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Stories about: planetary nebulas

A View of the Coldest Place in the Universe Scientists at the European Southern Observatory (ESO) discovered in 1995 what was at the time believed to be the coldest object in the Universe. Using the Chile-based ESO Submillimeter Telescope, the experts looked deep in space, and identified the Boomerang Nebula, which featured temperatures as low as minus 272 deg... 15 March 2010 05:00 GMT New Class of Cosmic Objects: Super Planetary Nebula In spite of their names, planetary nebulas have nothing to do with planets. Their name comes from the fact that they resembled large exoplanets when viewed through earlier telescopes. They are, in fact, shells of gas and dust, expelled by stars about the size of our Sun when their life cycle ends. Now, astronomers be... 15 August 2009 03:39 GMT