SpaceX

SpaceX is an American aerospace company that develops launch vehicles and spacecraft and operates satellite internet and space transportation services. It is known for reusable orbital rockets and privately operated crewed missions.

Falcon 9: A two-stage orbital launch vehicle developed by SpaceX, with a first stage designed for recovery and reuse. Its reusable first stage is the workhorse behind SpaceX's frequent commercial and government launches.
Starlink: A satellite internet constellation operated by SpaceX that provides broadband service from low Earth orbit. It is SpaceX's largest satellite deployment and a major recurring source of company revenue.
Elon Musk: An entrepreneur who founded SpaceX and has led the company as its chief executive and chief engineer. Musk founded SpaceX in 2002 and has set its long-term technical ambitions.
United Launch Alliance: An American launch services provider formed as a joint venture of Boeing and Lockheed Martin. ULA is a major domestic competitor with a different ownership and launch-vehicle approach.
Reusable launch vehicle: A launch vehicle designed to recover and fly again at least some of its components. SpaceX's operational booster recoveries made reusable orbital launch a demonstrated commercial practice.
Merlin (rocket engine): A family of liquid-fueled rocket engines developed by SpaceX for its Falcon launch vehicles. Merlin engines power Falcon 9 and Falcon Heavy, including the first stages SpaceX lands.
Commercial Resupply Services: NASA's program that contracts private spacecraft to deliver cargo to the International Space Station. SpaceX's Dragon spacecraft became one of the program's operational cargo vehicles.
Falcon 1: SpaceX's first orbital launch vehicle, a small rocket that reached orbit on its fourth flight in 2008. Its successful fourth launch established SpaceX as an orbital launch provider.
Blue Origin: An American aerospace company developing reusable launch vehicles and space systems. Its reusable-rocket ambitions overlap with SpaceX, but its launch business and flight history differ.
Launch cost: The price of placing a payload into space, shaped by vehicle design, operations, and market conditions. SpaceX's reuse strategy and high launch cadence have intensified pressure to lower prices.

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