width=device-width, initial-scale=1.0" name="viewport"> India's Aditya-L1 Reveals the Hidden Third Dimension of a Solar Eruption. A coronal mass ejection (CME) is a massive burst of hot, magnetised plasma released from the Sun's outer atmosphere, known as the corona. As CMEs travel through interplanetary space, those directed towards the Earth can contribute to space-weather disturbances and affect satellites and communication, and are therefore an important subject of research.