catdynamics

Steinn Sigurðsson

Professor of Astrophysics at Pennsylvania State University. Science Editor at Astrophysical Journal. Icelandic. Herder of Cats.

Posts by this author

The Origin of Dust

June 8, 2006

Spitzer has an interesting press release... Dusty SN2003gd The Spitzer infrared space observatory recently did followup imaging of a type II supernova in the nearby spiral galaxy M74. Type II supernovae occur when a short lived massive star (> 8 times the mass of the Sun, or so) exhaust the…

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Posts by this author

The Origin of Dust

Nazis in North Dakota

Ask Ethan: Do Black Holes Grow Faster Than They Evaporate? (Synopsis)

Postcard from Hazor