Possible Clues:

• Phenomenon that emits X-rays
• Far-off eruption shocking for all ears
• Sun's sudden flash
• Explosion on the sun's surface
• Wind far, all wrapped up in swelling burst of energy
• Source of radiation across the electromagnetic spectrum
• Brightening near a sunspot
• Sun's sudden energy release
• Eruption from the sun
• *Cause of problems in radio communication