Atlas V is the fifth major version in the Atlas rocket family. It is an expendable launch system that was originally designed by Lockheed Martin. Each Atlas V rocket consists of two main stages. The first stage is powered by a Russian RD-180 engine, which is manufactured by RD Amross, and burns kerosene and liquid oxygen. Each RD-180 engine costs about US$10 million which is considerably cheaper than any competing rocket with the ability to launch a satellite to geostationary orbit. It has a flawless record of launching American satellites over many years of service.