Glossary

Space vehicles are designed to carry people in space. The Space Shuttle, the International Space Station, the Soyuz spacecraft, and the Chinese Shenzhou craft are primary examples of space vehicles.

A special purpose acquisition company (SPAC), is a shell corporation listed on a stock exchange with the purpose of acquiring a private company, thus making it public without going through the traditional initial public offering process.

A Spot Market is a commodities or securities market in which goods are sold for cash and delivered immediately. Sellers and buyers of oil, gas, and electricity generally structure their business using (mainly) long term contracts, then use the spot market to make day-by-day or hour-by-hour adjustments. In this way, spot markets help balance supply and demand, even though spot market prices can be volatile.