A Solar Prominence is a big arch or loop of plasma extending off the surface of the sun. These loops are so big, you could fly a planet through them (in some cases, even a planet as big as Jupiter). It takes about a day for a prominence to form, and they may last as long as a couple months. Sometimes a prominence will break off and fly out into the solar system - this blast of plasma is known as a Coronal Mass Ejection.
Game and Story Use
- A spacecraft won't be too threatened by a prominence - any craft close enough to the sun to interact with one already has to be tough enough to survive the much hotter corona of the sun.
- Other stars are likely to have similar phenomenon.