Cosmic Dust Comes From Supernovae

Scientists Solve a Puzzle:                      Cosmic Dust Comes From Supernovae 

   “When a supernova explodes, it forms a bunch of dust” said Ryan Lau, an astronomer at Cornell University and lead author of the new study. “But dust is pretty fragile material. So the question is, who’s to say the dust survives this extremely hot, violent environment? And if it does, how much?”

Using infrared images from an observatory aboard a Boeing 747, Dr. Lau and his colleagues located a supernova remnant near the center of the Milky Way with substantial amounts of cosmic dust.