Electric Field Direction and Strength (image) NASA/Goddard Space Flight Center Share Print E-Mail Caption Electric field direction (arrows) and strength (colors) produced by the simulated interaction of the solar wind with a small irregularly shaped asteroid, about 150 meters (yards) long by 50 meters wide. The deepest shades of red indicate strong and possibly hazardous electric fields. Credit NASA/JHU-APL/Michael Zimmerman 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.