Elon Reeve Musk (born June 28, 1971) is a South African-born American entrepreneur who founded SpaceX in 2002 and serves as its chief executive and chief engineer. Under his direction the company developed the first orbital-class reusable rockets, became NASA's primary crew transportation provider, built the world's largest satellite constellation, and is flight-testing Starship, the largest rocket ever flown, toward his stated goal of establishing a self-sustaining settlement on Mars.[1][2]
Musk is also the chief executive of electric carmaker Tesla and controls several other companies, including the artificial intelligence firm xAI and the social platform X. His business record, political activity, and public statements have made him one of the most closely watched and most polarizing figures in technology; he is also, by most estimates, the world's richest person.[1][3] This article focuses on his role in space exploration.
Early life and first companies
Musk was born in Pretoria, South Africa, on June 28, 1971. He taught himself programming as a child and sold a video game he wrote at age 12. He left South Africa for Canada in 1989, then transferred to the University of Pennsylvania, earning bachelor's degrees in economics and physics in 1997. He enrolled in a Stanford graduate program in 1995 but left within days to start his first company.[1][2]
That company, the online city-guide firm Zip2, sold to Compaq in 1999 for about 307 million dollars. Musk then co-founded the online bank X.com, which merged into what became PayPal; eBay bought PayPal in 2002 for 1.5 billion dollars, leaving Musk, its largest shareholder, with the fortune he would soon spend on rockets.[1][2]
Founding SpaceX
Around 2001 Musk began exploring a project called Mars Oasis, a plan to land a small greenhouse on Mars to rekindle public interest in exploration. Trips to Russia to buy a refurbished missile as a launcher convinced him that launch prices, not public interest, were the limiting factor, and that a new company could build rockets far more cheaply than the incumbents. He founded Space Exploration Technologies Corp. on March 14, 2002, and invested roughly 100 million dollars of his own money.[1][2]
The gamble nearly failed. SpaceX's small Falcon 1 rocket failed on its first three flights, and by 2008 both SpaceX and Tesla were close to bankruptcy. On September 28, 2008, the fourth Falcon 1 reached orbit, the first privately developed liquid-fuel rocket to do so, and in December NASA awarded SpaceX a 1.6 billion dollar cargo resupply contract that Musk has credited with saving the company.[1][2]
Chief engineer and key program decisions
Musk holds the title of chief engineer as well as CEO, and colleagues and biographers describe him as directly involved in major design choices, from engine architecture to the decision to build Starship out of stainless steel. Several of those choices shaped the current launch industry.[1][2]
The central one was reusability. Against prevailing industry judgment that recovering orbital boosters could not pay, Musk directed SpaceX to land and refly Falcon 9 first stages. The first successful landing came in December 2015 and the first reflight in March 2017; boosters now routinely fly 25 or more missions, and the Falcon family, including the Falcon Heavy, had logged 670 launches by late June 2026, more than any other rocket line in history.[2][4] The Dragon spacecraft that rides those boosters carried astronauts for the first time in May 2020 under NASA's Commercial Crew Program, the first crewed orbital flight by a private company, and continues to serve the International Space Station.[2]
A second decision was Starlink, approved in 2015 as a way to fund Mars development with satellite internet revenue. As of mid-2026 the constellation numbers roughly 10,400 satellites serving more than 12 million customers, and it has become SpaceX's main source of income.[5]
The third is Starship, a fully reusable two-stage vehicle designed to lift more than 100 tonnes. Musk pushed unconventional calls that defined the program: methane-fueled Raptor engines, stainless steel construction instead of carbon fiber, rapid build-test-fly iteration at the Starbase site in South Texas, and catching returning boosters with the launch tower. Twelve integrated test flights have flown since April 2023, most recently the debut of the upgraded Version 3 design on May 22, 2026. NASA selected Starship in 2021, under a 2.89 billion dollar award, as the crewed lunar lander for the Artemis program, which flew astronauts around the Moon in April 2026.[2][6]
SpaceX milestones under Musk
| Year | Milestone |
|---|---|
| 2008 | Falcon 1 reaches orbit; NASA cargo contract |
| 2012 | Dragon is first commercial spacecraft to berth with the ISS |
| 2015 | First landing of an orbital-class booster |
| 2020 | Demo-2, first private crewed orbital flight |
| 2021 | NASA selects Starship as Artemis lunar lander |
| 2023 | First integrated Starship flight test |
| 2026 | Starship Version 3 debut; Falcon family passes 670 launches |
The Mars goal
Musk has framed SpaceX's purpose since its founding as making humanity multiplanetary, arguing that a self-sustaining city on Mars is insurance against civilization-ending events on Earth. He presented the Starship architecture for Mars settlement at the 2016 International Astronautical Congress and has repeatedly sketched plans for fleets of ships launching at each Earth-Mars transfer window, which occurs about every 26 months.[1][7]
Plans shifted in February 2026, when Musk said SpaceX would prioritize establishing a lunar settlement first, arguing that the Moon's short trip times and near-continuous launch windows allow much faster iteration; the change dropped talk of the late-2026 Mars window and left the 2028-2029 alignment as the earliest plausible uncrewed attempt.[9] As of mid-2026 no orbital propellant-transfer test had yet flown, and no Mars mission was confirmed; Musk's schedule estimates have historically run years ahead of actual performance, a pattern he has himself acknowledged.[7]
Tesla and other ventures
Musk joined Tesla as an early investor and chairman in 2004 and became CEO in 2008; the company's Model S, Model 3, and Model Y helped move electric cars into the mainstream, and it now also builds the Optimus humanoid robot. He co-founded Neuralink (brain-computer interfaces) and The Boring Company (tunneling), bought Twitter for 44 billion dollars in 2022 and renamed it X, and founded the AI company xAI in 2023, which absorbed X in a 2025 all-stock deal.[1][2] His compensation, workplace practices, and regulatory clashes, including a 2018 securities-fraud settlement with the SEC that cost him Tesla's chairmanship, have drawn repeated litigation and press scrutiny.[1]
Government service and politics
Musk spent heavily in support of Donald Trump's 2024 presidential campaign and, from January to May 2025, served as a special government employee leading the Department of Government Efficiency (DOGE), a cost-cutting initiative. He left the role on May 30, 2025, and had a brief, public falling-out with Trump in June 2025, for which he later expressed regret. He then returned to running his companies full time, and as of mid-2026 he holds no government position.[3][8] His political spending and statements, and content-moderation decisions at X, remain subjects of controversy in the United States and Europe; supporters credit him with reviving American launch capability, while critics fault his management style and public conduct.[1][3]
References
- Elon Musk - Wikipedia.
- Elon Musk | SpaceX, Tesla, xAI, X, & PayPal - Encyclopaedia Britannica.
- Elon Musk is leaving the federal government. What's next for DOGE? - NPR.
- List of Falcon 9 and Falcon Heavy launches - Wikipedia.
- SpaceX's Starlink Surpasses 12M Customers Across 160 Countries As Growth Accelerates - Yahoo Finance.
- SpaceX launches more powerful Super Heavy-Starship rocket on test flight - CBS News.
- A Closer Look at SpaceX's Mars Plan - Aerospace America.
- Elon Musk may be gone but DOGE isn't done remaking the federal government - NPR.
- Elon Musk says SpaceX will prioritize establishing a city on the moon instead of building a Mars colony - Scientific American.
