What can you do with plasma?

Answer 1

First of all, a plasma is a form of matter (like solids, liquids, and gases) where the electrons have enough energy to freely leave the atoms that they would normally be bound to.

While a fluorescent light bulb is on, the interior of the tube is a plasma. Those lightening ball toys have a plasma on the inside.

When most people think of plasma, they think of high temperatures. Plasma cutters are used to cut metals. Plasma arc welding can fuse metals together. Some technologies use plasmas to destroy dangerous chemicals.

If we could control plasma better and generate it more efficiently, then it could become a source of thrust for spacecraft.