SOHO Science Highlights

I. Solar interior

• "Rivers" of plasma under the Sun's surface

• "Sunquake" caused by a solar flare

II. Solar corona

• "Magnetic carpet" with enough energy to heat the corona

• Source of the high-speed solar wind

• Moreton waves: the "ground tracks" of coronal mass ejections

III. The solar wind and heliosphere

• How the high-speed wind is accelerated

• First "cradle-to-grave" observations of a "halo" coronal mass ejection from the Sun to impact on the earth's magnetosphere

• How much water vapor a comet releases