The Perseus-Taurus Supershell (VIDEO) Center for Astrophysics | Harvard & Smithsonian This video is under embargo. Please login to access this video. Caption Astronomers analyzing 3D maps of interstellar dust have discovered a huge, spherical-shaped cavity in space. The discovery shows that supernovae led to the creation of the Perseus and Taurus molecular clouds. Credit Jasen Chambers/Center for Astrophysics | Harvard & Smithsonian. Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.