Materials -- Taking the Heat (IMAGE) DOE/Oak Ridge National Laboratory Caption NASA's Parker Solar Probe, shown in this artist's concept, is scheduled to launch on July 31 to contribute data that may improve the agency's ability to forecast space weather, which can disrupt communications satellites and power grids, and may demystify why the sun's corona is hotter than its surface. Credit Steve Gribben/NASA, Johns Hopkins APL 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.