Disturbance Ecology from nearby Supernovae
  Monte Carlo simulations of Galactic Supernovae are carried out to study the rate of nearby events, which may have a direct effect on Earth's ecology though ionizing radiation and cosmic ray bombardment. A nearby supernova may have left a radioactive imprint (60Fe) in recent galactic history. 
D. H. Hartmann (Clemson), K. Kretschmer (MPE), R. Diehl (MPE)