Computer simulation illustrates projectile strike (VIDEO) Southwest Research Institute This video is under embargo. Please login to access this video. Caption This high resolution (1 million particles) computer simulation illustrates an 1,800-mile-diameter (3,000-kilometer) projectile striking Venus head-on at 18 miles per second (30 km/s). On the left, the colors indicate different materials — brown for Venus' core; white for the projectile's core; and green for the silicate mantle of both objects. The colors on right side indicate the temperature of the materials. Credit Southwest Research Institute Usage Restrictions Images/Videos may be used by the public for educational and informational purposes only. License Original 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.