by neufer » Sat Aug 22, 2009 2:00 pm
http://apod.nasa.gov/apod/ap090822.html wrote:
Explanation: The Gum Nebula is so large and close it is actually hard to see. In fact, we are only about 450 light-years from the front edge and 1,500 light-years from the back edge of this cosmic cloud of glowing hydrogen gas. The complex nebula is thought to be a supernova remnant over a million years old, sprawling across the southern constellations Vela and Puppis.
http://www.youtube.com/watch?v=2nllRVy4N0I[img]http://www.scientificamerican.com/media/inline/8FA2DE22-E7F2-99DF-3F1DEE3973ED24E7_1.jpg[/img]
[quote=" http://apod.nasa.gov/apod/ap090822.html"]
Explanation: The Gum Nebula is so large and close it is actually hard to see. In fact, we are only about 450 light-years from the front edge and 1,500 light-years from the back edge of this cosmic cloud of glowing hydrogen gas. The complex nebula is thought to be a supernova remnant over a million years old, sprawling across the southern constellations Vela and Puppis.[/quote]
[b] http://www.youtube.com/watch?v=2nllRVy4N0I[/b]