Falcon 9 is a partially reusable, two-stage, kerosene and liquid oxygen launch vehicle built and operated by SpaceX. Since its first flight on June 4, 2010, it has become the most-flown American rocket in history and the backbone of global launch activity. As of June 29, 2026, the Falcon family (Falcon 9 plus Falcon Heavy) had flown 670 missions with 667 full successes, including 77 launches in the first half of 2026 alone.[1][2]
The rocket's defining feature is its recoverable first stage, which lands propulsively on drone ships at sea or on concrete pads near the launch site and then flies again. That capability, demonstrated for the first time in December 2015, turned booster reuse from a design study into routine industrial practice and made Falcon 9 the foundation of the modern reusable rocket era.[3]
Falcon 9 carries most of the world's commercial satellites, the Starlink constellation, NASA science missions, and every American crew currently flying to the International Space Station aboard the Dragon spacecraft.
Version history
SpaceX has flown four major versions of the vehicle, each heavier and more powerful than the last.[1]
| Version | Flights | Service period | Notes |
|---|---|---|---|
| v1.0 | 5 | 2010-2013 | Merlin 1C engines in a 3x3 grid, no landing capability |
| v1.1 | 15 | 2013-2016 | Stretched tanks, Merlin 1D engines in "octaweb" layout, first landing attempts |
| Full Thrust (v1.2) | 36 | 2015-2018 | Subcooled propellants, uprated thrust, first successful landings and reflight |
| Block 5 | 600+ | 2018-present | Optimized for rapid reuse, human-rated, retractable landing legs |
Falcon 9 v1.0 flew five times between 2010 and 2013, launching the first Dragon capsules. The stretched v1.1, introduced in September 2013, rearranged nine upgraded Merlin 1D engines into the octaweb pattern still used today and added landing legs and grid fins on later flights. The Full Thrust variant debuted on December 21, 2015, using densified, subcooled propellants to raise performance by roughly 30 percent. Block 5, first flown on May 11, 2018 with the Bangabandhu-1 satellite, incorporated titanium grid fins, a reinforced heat shield, and other changes intended to let each booster fly ten times with minimal refurbishment; SpaceX now targets up to 40 flights per booster.[1][3]
Reusability milestones
SpaceX attempted propulsive landings on ocean platforms beginning in 2015 after earlier parachute recovery plans failed. The first successful landing came on December 21, 2015, when booster B1019 returned to Landing Zone 1 at Cape Canaveral after launching 11 Orbcomm OG2 satellites. The first landing on a drone ship followed on April 8, 2016, during the CRS-8 space station resupply mission.[3]
On March 30, 2017, the booster recovered from CRS-8 launched again with the SES-10 communications satellite, the first reflight of an orbital-class rocket stage. SpaceX also recovers and reflies the two payload fairing halves, which parachute into the ocean and are fished out by recovery ships.[3]
Reuse counts have climbed steadily since. On June 8, 2026, booster B1067 flew and landed for the 35th time on a Starlink mission, a record for any orbital rocket booster; the same stage had previously launched crew flights for Axiom Space, two Dragon cargo missions, and the European Euclid space telescope. Several other boosters in the fleet have logged 25 or more flights each, past the 25-flight depreciation life SpaceX uses in its own accounting.[4][5]
Specifications
| Parameter | Falcon 9 Block 5 |
|---|---|
| Height | 70 m |
| Diameter | 3.7 m |
| Liftoff mass | 549,054 kg |
| First stage engines | 9 Merlin 1D (kerosene/liquid oxygen) |
| Liftoff thrust | 7,607 kN |
| Second stage engine | 1 Merlin Vacuum |
| Payload to low Earth orbit | 22,800 kg (expendable); roughly 17,500 kg with booster recovery |
| Payload to geostationary transfer orbit | 8,300 kg (expendable) |
| Booster landing | Drone ship or landing zone |
The first stage burns for about 162 seconds before separation, then performs boostback, entry, and landing burns depending on the mission profile. The second stage's single Merlin Vacuum engine can restart multiple times to deliver payloads to a range of orbits.[6]
Dragon and crewed flights
Falcon 9 is the only American rocket currently certified to launch astronauts. The Demo-2 mission on May 30, 2020 carried NASA astronauts Doug Hurley and Bob Behnken to the space station, the first crewed orbital launch by a commercial vehicle, and regular crew rotations have followed under NASA's Commercial Crew Program. The rocket also launches Cargo Dragon resupply flights and private crewed missions such as Inspiration4, Polaris Dawn, and the Axiom Space flights. Crewed launches use a flight-proven Block 5 booster and an escape-capable Dragon 2 capsule.[1]
Starlink and launch cadence
Starlink is the dominant customer. Roughly two thirds of Falcon 9 flights carry batches of Starlink satellites, and the internal demand has pushed cadence to levels no other launch system approaches: 77 Falcon launches in the first six months of 2026, with company president Gwynne Shotwell projecting roughly 140 to 145 for the full year.[2][5] SpaceX operates pads at Kennedy Space Center (LC-39A), Cape Canaveral Space Force Station (SLC-40), and Vandenberg Space Force Base (SLC-4E), with drone ships stationed in the Atlantic and Pacific.
Beyond Starlink, recent Falcon 9 payloads have included NASA planetary and astrophysics missions, commercial lunar landers, national security satellites, and rideshare flights carrying dozens of small spacecraft at a time under the Transporter program.[2]
Reliability record
Across 670 Falcon family launches through June 29, 2026, SpaceX counts 667 full successes.[1][2] The failures: the CRS-7 cargo mission broke apart in flight on June 28, 2015 after a strut holding a helium tank failed; a second stage engine anomaly stranded a batch of Starlink satellites in a low orbit in July 2024; and the CRS-1 flight in October 2012 lost an engine and delivered its secondary payload to a wrong orbit, a partial failure. Separately, the Amos-6 satellite and its booster were destroyed in a September 2016 explosion during a pre-launch test, an event not counted in flight statistics because the rocket never lifted off.[1]
The July 2024 upper stage failure ended a streak of more than 300 consecutive successful launches, the longest in spaceflight history. Falcon 9 returned to flight 15 days later.[1]
Role in the market
Falcon 9's list price of about 70 million dollars, combined with reuse economics, undercut competing vehicles and forced rivals in Europe, Russia, and the United States to develop new rockets. Its cadence has also made SpaceX central to debates about orbital congestion and space debris. SpaceX intends for Starship to eventually replace Falcon 9, but the company has said the rocket and Dragon will keep flying into the 2030s to support the space station and existing customers.[1][5]
References
- Falcon 9 - Wikipedia.
- List of Falcon 9 and Falcon Heavy launches - Wikipedia.
- SpaceX reusable launch system development program - Wikipedia.
- SpaceX just launched, and landed, a Falcon 9 rocket booster for the 35th time - Space.com.
- Falcon 9 Reusability Passes 650 Flights: Block 5 Now Flies Past Its Accounting Life - Tech Times.
- Falcon 9 - SpaceX.
