mrt 212013
Anne's Picture of the Day: Emission Nebula RCW 79

March 21, 2013 RCW 79, an emission nebula in Centaurus Image Credit: E. Churchwell (Univ. Wisconsin-Madison) et al., JPL-Caltech, NASA RCW 79 is an emission nebula, a star-forming region of about 70 light-years across that lies some 17,200 light-years from Earth in the southern constellation of Centaurus. This cosmic bubble of ionized hydrogen gas and [continue reading]