PUNCH Satellites (IMAGE) Southwest Research Institute Caption NASA has selected Southwest Research Institute to lead a microsatellite mission to image the Sun's outer corona. PUNCH proposes a constellation of four suitcase-sized satellites that will orbit the Earth, studying how the Sun's corona connects with the interplanetary medium, to better understand how coronal structures infuse the solar wind with mass and energy. Credit Southwest Research Institute Usage Restrictions Images/videos may be used by the media and the public for educational and informational purposes only 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.