Wednesday, August 13, 2008


universe! -keith

the universe is awesome. this is the cat's eye nebula. click to embiggen.

lifted from: http://chandra.harvard.edu/photo/2008/catseye/

"This composite of data from NASA's Chandra X-ray Observatory and Hubble Space Telescope is a new look for NGC 6543, better known as the Cat's Eye nebula.
This famous object is a so-called planetary nebula that represents a phase of stellar evolution that the Sun should experience several billion years from now. When a star like the Sun begins to run out of fuel, it becomes what is known as a red giant. In this phase, a star sheds some of its outer layers, eventually leaving behind a hot core that collapses to form a dense white dwarf star. A fast wind emanating from the hot core rams into the ejected atmosphere, pushes it outward, and creates the graceful filamentary structures seen with optical telescopes."

1 comment:

JanetMcNally said...

Oh!! Keith will be happy to be quoted. In context it was, "Let's watch an episode of Universe!"