Solar tsunami (credit: NASA)
A gigantic tsunami-like shock waves are produced by Earth-sized sunspots. According to NASA, a "solar tsunami", a Moreton Wave, spread at nearly one million kilometers per hour and can circle the Sun in a matter of minutes. A solar tsunami is launched by huge explosions near the Sun's atmosphere, the corona, and technically called coronal mass ejections (CMEs). They are super-hot at 60,000 degrees Celsius or 108,000F.