SpaceX is an aerospace manufacturer and space transportation services company founded by American entrepreneur Elon Musk in 2002. It is headquartered in Hawthorne, California with additional facilities in Vandenberg Air Force Base, California and McGregor, Texas. SpaceX designs, manufactures, and launches advanced rockets and spacecrafts with the goal of enabling people to live on other planets.

SpaceX began in 2002, when Musk, then a co-founder of PayPal, began developing the Falcon 1 rocket. This first rocket was designed to be the most cost effective rocket available at the time, and it was successfully launched in 2008. The success of the Falcon 1 rocket propelled SpaceX forward, and in 2010 Musk unveiled the Falcon 9 rocket, which would be the first to use reusable rocket technology.

SpaceX has since continued to innovate in the rocket and spacecraft industry and has achieved a number of notable milestones. In 2012, SpaceX launched the Dragon spacecraft, which became the first commercial spacecraft to dock with the International Space Station (ISS). In 2015, SpaceX became the first company to launch a rocket into space and then land it back down on Earth. In 2017, SpaceX successfully launched the Falcon Heavy rocket, the most powerful rocket ever created by a commercial company.

In terms of revenue streams, SpaceX primarily relies on government contracts, such as those from NASA, to fund its operations. These contracts are usually awarded through competitive bidding processes, and SpaceX has been successful in securing many of them. In addition to government contracts, SpaceX also generates revenue from commercial satellite launches and from its Starlink program, which provides broadband internet access to remote areas.

SpaceX also receives government funding for research and development programs. For example, in 2020, the U.S. government awarded SpaceX with a $2.9 billion dollar contract to develop a lunar lander for the Artemis mission.

Overall, SpaceX has revolutionized the aerospace industry and made space exploration accessible to everyone. It has achieved a number of notable milestones, and its success has been largely attributed to its innovation and commitment to pushing the boundaries of what is possible. Its success has also been bolstered by government contracts and funding, which have allowed SpaceX to continue to develop new technologies and launch satellites and space vehicles.