SpaceX Falcon 9: The Most-Launched Rocket in History

The SpaceX Falcon 9 is the most-launched orbital rocket in history. With over 350 successful missions, a launch cadence that exceeded 130 flights in 2025 alone, and individual boosters that have flown more than 20 times, Falcon 9 has fundamentally rewritten the economics and logistics of reaching orbit.

No other rocket — past or present — has come close to matching Falcon 9's combination of reliability, reusability, and launch frequency. Here is the complete guide to the rocket that changed everything.

Specifications

Falcon 9 is a two-stage, partially reusable rocket. The first stage is designed to return to Earth and be reflown; the second stage is expended on each mission.

• Height: 229.6 feet (70 meters)
• Diameter: 12 feet (3.7 meters)
• Mass at liftoff: Approximately 1,207,920 lbs (549,054 kg)
• First stage engines: 9 Merlin 1D engines
• First stage thrust: 1.71 million lbs (7,607 kN) at sea level
• Second stage engine: 1 Merlin Vacuum engine
• Payload to LEO: 50,265 lbs (22,800 kg)
• Payload to GTO: 18,300 lbs (8,300 kg)
• Fairing diameter: 17.1 feet (5.2 meters)
• List price: Approximately $67 million

The Merlin 1D engine is a gas-generator cycle engine burning RP-1 (refined kerosene) and liquid oxygen. Each engine produces approximately 190,000 lbs of thrust at sea level. The nine engines on the first stage are arranged in an "octaweb" pattern — eight engines in a ring with one in the center.

The Reusability Revolution

Falcon 9's most transformative feature is its reusable first stage. After separating from the second stage, the booster performs a series of engine burns to decelerate and guide itself to a precision landing — either on a ground pad at the launch site or on an autonomous drone ship positioned in the ocean downrange.

How Booster Landing Works

The landing sequence involves three burns:

1. Boostback burn: Shortly after stage separation, the booster fires a subset of engines to reverse its trajectory and steer toward the landing site
2. Entry burn: As the booster descends through the atmosphere, another burn decelerates it from supersonic speeds and reduces aerodynamic heating
3. Landing burn: A single-engine burn in the final seconds guides the booster to a pinpoint touchdown on four deployable landing legs

Grid fins — four titanium fins mounted near the top of the booster — provide steering during atmospheric descent. The entire landing sequence is autonomous, guided by onboard computers and GPS.

Reuse Records

SpaceX has pushed booster reuse far beyond initial expectations:

• First successful landing: December 21, 2015 (Orbcomm OG2 mission)
• First reflight: March 30, 2017 (SES-10 mission)
• Most flights by a single booster: Over 20 flights on several boosters
• Turnaround time: Some boosters have been reflown within weeks of their previous mission
• Landing success rate: Over 98% across all landing attempts

Each successful reuse reduces the marginal cost of a Falcon 9 launch. While SpaceX does not publish exact per-flight costs for reused boosters, industry estimates suggest the marginal cost of a reflown mission is significantly less than the $67 million list price — giving SpaceX substantial margins on each flight.

Record-Breaking Launch Cadence

Falcon 9's launch frequency is unprecedented in the history of spaceflight:

• 2020: 26 launches
• 2021: 31 launches
• 2022: 61 launches
• 2023: 98 launches
• 2024: Over 120 launches
• 2025: Over 130 launches — more than one every three days

No other rocket in history has achieved anything close to this cadence. For context, the entire rest of the world's launch industry combined launched fewer orbital rockets in 2025 than SpaceX did alone. The majority of Falcon 9 flights are Starlink missions deploying batches of SpaceX's internet satellites, but the rocket also carries commercial payloads, NASA missions, national security payloads, and Dragon spacecraft.

Notable Missions

Crew Dragon Missions

Falcon 9 is NASA's primary crew transport vehicle to the International Space Station. Since the Demo-2 mission in May 2020 — which returned American crewed launch capability to U.S. soil for the first time since the Space Shuttle — Falcon 9 has launched dozens of astronauts for NASA, Axiom Space, and private missions including Inspiration4 (the first all-civilian orbital mission) and the Polaris program.

Starlink Deployment

The majority of Falcon 9 missions deploy batches of Starlink satellites. A typical Starlink mission launches 20–23 V2 Mini satellites per flight, with SpaceX conducting multiple Starlink launches per week to build and replenish the constellation of over 6,700 active satellites.

National Security

Falcon 9 is certified for U.S. national security space launches and regularly carries classified payloads for the Space Force and National Reconnaissance Office under the National Security Space Launch (NSSL) program.

Commercial Satellites

Falcon 9 launches communications satellites, Earth observation satellites, and other commercial payloads for customers worldwide. Its reliability and competitive pricing have made it the default choice for most commercial satellite operators.

Evolution of Falcon 9

The Falcon 9 flying today is radically different from the original version:

• Falcon 9 v1.0 (2010–2013): Original version with Merlin 1C engines, no reusability capability
• Falcon 9 v1.1 (2013–2016): Stretched tanks, upgraded Merlin 1D engines, first landing attempts
• Falcon 9 Full Thrust / Block 5 (2018–present): Current version with maximum performance, designed for rapid and repeated reuse. Block 5 boosters are rated for at least 10 flights with minimal refurbishment and up to 40 flights with periodic maintenance.

The Block 5 upgrade was specifically designed around reusability: more durable thermal protection, improved landing legs, a more robust interstage, and engines tuned for longevity over maximum single-use performance.

Competitive Landscape

Falcon 9's dominance has forced the entire launch industry to adapt:

• Arianespace: Europe's Ariane 6 finally flew in 2024 after years of delays, but cannot match Falcon 9 on price or cadence
• United Launch Alliance: Vulcan Centaur debuted in January 2024 and competes on reliability and unique orbit capabilities, but is not reusable
• Rocket Lab: Electron targets the small satellite market; the upcoming Neutron rocket will compete more directly with Falcon 9
• China: Long March rockets are increasing in capability and cadence, with reusable vehicles in development
• Blue Origin: New Glenn is entering operational service and will compete with Falcon 9 on heavy-medium payloads

Despite increasing competition, Falcon 9's combination of proven reliability, competitive pricing, high launch cadence, and extensive flight heritage creates a moat that will be difficult for competitors to cross in the near term.

What's Next for Falcon 9

Falcon 9 will continue as SpaceX's primary launch vehicle for the foreseeable future, even as Starship matures. SpaceX has not announced a Falcon 9 retirement date. The rocket will continue launching Crew Dragon missions, deploying Starlink satellites, and carrying commercial and government payloads.

Eventually, Starship is expected to take over many of Falcon 9's roles — particularly Starlink deployment, where Starship's much larger payload volume would allow far more satellites per launch. But that transition is likely years away, and Falcon 9 will remain the backbone of SpaceX's operations through at least the late 2020s.

Track upcoming Falcon 9 launches on our launch vehicles page and compare its capabilities with competitors on our SpaceX vs. Arianespace analysis.

Frequently Asked Questions

How many times can Falcon 9 be reused?

SpaceX designed the Falcon 9 Block 5 booster for at least 10 flights with minimal refurbishment and up to 40 flights with periodic maintenance. In practice, several boosters have exceeded 20 flights. SpaceX continues to push the reuse envelope with each mission.

How much does a Falcon 9 launch cost?

SpaceX lists the Falcon 9 at approximately $67 million per launch. For reused boosters, the actual cost to SpaceX is significantly lower, though exact figures are not publicly disclosed. This pricing undercuts virtually all competitors and has reshaped the global launch market.

How many Falcon 9 launches have there been?

As of early 2026, SpaceX has launched over 350 Falcon 9 missions since the rocket's debut in June 2010. In 2025 alone, SpaceX flew over 130 Falcon 9 missions — more than one every three days and more than any other launch provider in the world.

What is Falcon 9's success rate?

Falcon 9 has an overall mission success rate exceeding 99%. The rocket has experienced only two failures in its entire history: CRS-7 in June 2015 (in-flight breakup) and AMOS-6 in September 2016 (pad explosion during fueling). Since AMOS-6, Falcon 9 has completed well over 300 consecutive successful missions.