id author title date pages extension mime words sentence flesch summary cache txt news-003319 Astrophysicists catch two supernovae at the moment of explosion | News | Notre Dame News | University of Notre Dame .html text/html 642 21 53 News | Notre Dame News | University of Notre Dame Skip To Content Skip To Navigation Skip To Search University of Notre Dame Notre Dame News Experts ND in the News Subscribe About Us Home Contact Search Menu Home › News › Astrophysicists catch two supernovae at the moment of explosion Astrophysicists catch two supernovae at the moment of explosion Published: March 21, 2016 Author: Notre Dame News The brilliant flash of an exploding star’s shockwave — what astronomers call the “shock breakout” — is illustrated in this video animation. cache/news-003319.html txt/news-003319.txt