Star Disk Collision (image) Georgia Institute of Technology Share Print E-Mail Caption A sequence of snap shots based on a simulation of a red giant entering and exiting a clump in a fragmenting accretion disk. In this case, it takes four days for the star to travel through the clump (each .1 unit of time is approximately one hour). Credit Georgia Tech Usage Restrictions None Share Print E-Mail 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.