SpaceX Falcon Heavy (booster cores)
SpaceX · Reusable Launch Vehicle (Booster) · USA · Digital Age (2010–present)
The SpaceX Falcon Heavy is the most-powerful in-service launch vehicle in the world. It first flew on 6 February 2018, putting Elon Musk's personal Tesla Roadster on a trans-Mars trajectory in the most-watched single launch event of the 21st century. The Falcon Heavy is built from three modified Falcon 9 first-stage boosters strapped together: a centre core plus two side, each with nine Merlin 1D engines, for a total liftoff thrust of 5,130 kN — about 64% of the Saturn V's thrust. Maximum payload to LEO is 63,800 kg.
Falcon Heavy was originally targeted for 2013 but slipped repeatedly because integrating three Falcon 9 cores forced re-engineering of structural loads, propellant feed lines, and avionics throughout the system. The 2018 maiden flight succeeded — both side boosters returned to Cape Canaveral and landed simultaneously on adjacent pads, a televised moment that reset public expectations of what reusable rockets could do. The centre core landed on the autonomous spaceport drone ship but came in too fast and crashed. Subsequent flights have flown the centre core in expendable mode, since the centre core is recovered less profitably than the side boosters.
The Falcon Heavy has flown seven times as of 2026 (USSF-44, USSF-67, ViaSat-3, EchoStar XXIV, Psyche, USSF-52, USSF-87) — a low cadence reflecting its position as a niche vehicle for payloads too heavy for Falcon 9 but not heavy enough to justify a Starship (now in-service). U.S. Space Force national-security launches make up the bulk of recent missions; commercial geostationary satellites and NASA Psyche (the asteroid mission) round out the manifest. Falcon Heavy is also the launch vehicle scheduled to send the Europa Clipper mission to Jupiter's moon Europa in 2024.
Falcon Heavy will likely be retired sometime around 2027-2030 once SpaceX Starship reaches in-service reliability for national-security and heavy commercial payloads. Falcon 9 (the smaller workhorse) will remain in service longer because no Starship-sized payloads exist for the bulk of LEO satellite-constellation missions. Both side boosters and the centre core are derived from Falcon 9 first stages and benefit from the Falcon 9 reuse experience (200+ landings as of 2026).
For Kids — a shorter, friendlier version
The Falcon Heavy is the world's most powerful rocket currently flying. SpaceX built it by strapping three Falcon 9 first stages together — three rockets side by side, all firing at once. The Falcon Heavy first flew in February 2018.
The Falcon Heavy stands 230 feet tall — taller than a 20-story building. Three side-by-side first stages each have 9 engines. That's 27 engines firing at liftoff. The Falcon Heavy can lift up to 64 metric tons to orbit. That's more than any other rocket except the new Starship.
The first Falcon Heavy test flight in February 2018 was famous. Instead of a satellite, Elon Musk launched his red Tesla Roadster sports car. A mannequin named "Starman" sat at the wheel, wearing a SpaceX spacesuit. David Bowie's song "Space Oddity" played on the radio. The Tesla is still flying through space today.
The Falcon Heavy has launched military satellites, communications satellites, and NASA's Psyche spacecraft (to a metal asteroid). SpaceX has many more Falcon Heavy missions planned. The newer Starship rocket will take over most heavy-lift work, but the Falcon Heavy keeps flying. It is proven, reliable, and customers know what to expect.
Fun Facts
- The Falcon Heavy is the world's most powerful operational rocket — three Falcon 9 first stages strapped together.
- 27 Merlin engines fire at liftoff — more than any other rocket currently flying.
- Can carry up to 64 metric tons to orbit — more than any rocket except Starship and the planned SLS Block 2.
- First flight in February 2018 launched Elon Musk's red Tesla Roadster sports car into space.
- The Tesla is still flying through space today, somewhere between Mars and the asteroid belt.
- 11 Falcon Heavy flights through 2026 — all successful.
- Falcon Heavy launches military satellites, communications satellites, and NASA spacecraft.
Kids’ Questions
Why three rockets stuck together?
Building a single-stage rocket big enough to lift 64 tons would be enormous and expensive. Instead, SpaceX decided to use proven Falcon 9 first stages — they already work great. Strapping three of them together gives 3x the lift power. The three first stages all fire at liftoff. About 2 minutes in, the two side boosters run out of fuel, separate, and fly back to Earth to land. The center booster continues for another minute, then separates and (sometimes) also lands. Then the second stage (just one engine) takes the payload to orbit. This way SpaceX can reuse most of the rocket — much cheaper than throwing it away.
Where is Elon Musk's Tesla in space now?
The Tesla Roadster is currently somewhere between Mars and the asteroid belt — over 240 million miles from Earth. It travels in an elliptical orbit around the Sun, similar to a regular planet's path. The Tesla will keep orbiting the Sun for millions of years. Scientists have calculated that it might one day crash into Mars or Venus — but probably not for hundreds of millions of years. You can find websites that track the Tesla's current position in real time. As of 2026, the Tesla has driven over 4 billion miles since it launched.
Variants
- Falcon Heavy Block 5
- Current production standard. Three Falcon 9 Block 5 boosters strapped together. Centre core flown in expendable mode on most flights since the 2018 maiden flight crash. Reusable side boosters.
Notable Operators
- SpaceX
- Designer, builder, and sole operator. Launches from Kennedy Space Center LC-39A (the same pad that flew the Saturn V and Space Shuttle). Customer base: U.S. Space Force, NASA, and commercial geostationary satellite operators.
Frequently Asked Questions
How does Falcon Heavy compare to Saturn V?
Falcon Heavy produces about 5,130 kN liftoff thrust — about 64% of the Saturn V's 7,891 kN. LEO payload: 63,800 kg vs. Saturn V's 140,000 kg. Falcon Heavy is the most-powerful in-service rocket in 2026, but the Saturn V remains the most-powerful rocket ever flown.
How much does a Falcon Heavy launch cost?
About USD$97 million for a fully reusable mission (booster recovery on both sides + droneship for centre core), USD$150 million for an expendable centre core. About 10× cheaper per kilogram to LEO than the Space Shuttle programme; about 1.5× cheaper than United Launch Alliance Delta IV Heavy at peak production.
Has Falcon Heavy launched humans?
No — Falcon Heavy has only flown unmanned payloads. Crew Dragon and Starship are SpaceX's crewed-mission vehicles. Falcon Heavy was certified for crewed flight by NASA but has never been used for one.
How many times has Falcon Heavy flown?
Seven times between 6 February 2018 and 2026: maiden Tesla Roadster, Arabsat-6A (2019), STP-2 (2019), USSF-44 (2022), USSF-67 (2023), ViaSat-3 (2023), EchoStar XXIV (2023), Psyche (2023), USSF-52 (2023), USSF-87 (2024). The cadence has been roughly 2-3 launches per year.
Will Falcon Heavy be retired?
Likely sometime around 2027-2030 once SpaceX Starship reaches in-service reliability for national-security and heavy commercial payloads. Falcon 9 will remain in production longer because most LEO satellite payloads don't need Starship's full lift capacity.
Sources
See Also
- SpaceX Falcon 9 — Smaller sister rocket; basis of Falcon Heavy boosters
- SpaceX Starship — SpaceX's larger successor launch vehicle
- Saturn V — Most-powerful rocket ever flown (predecessor)
- Space Shuttle Orbiter — Earlier reusable U.S. heavy launch vehicle
- V-2 rocket — Original liquid-fuelled rocket; ancestor of all modern launch vehicles