Planet Impact Animation (VIDEO) Durham University This video is under embargo. Please login to access this video. Caption Cross-section animation of the early stages of a 3D simulation of a head-on, slow giant impact using 30 to 100 million particles, coloured by its material or its internal energy, related to its temperature. Credit Jacob Kegerreis, Durham University. Usage Restrictions None License Licensed content 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.