Stereo Probes To View Sun in New Light

摘要

Two NASA probes are running a gauntlet of tests and checks in preparation for their mission to watch some of the Sun's largest explosions in three dimensions. Engineers are ensuring the space worthiness of NASA's twin Stereo spacecraft for their upcoming mission to study coronal mass ejections, enormous solar eruptions of high-energy particles that can interfere with satellites and pose a danger to orbiting astronauts when directed at Earth. Once launched, the two Stereo probes will take up Sun-watching positions ahead and behind Earth to record the first real-time 3-D images of the nearest star.