A launch vehicle is a transportation vehicle designed to generate enough thrust to overcome Earth’s gravity and travel through the upper atmosphere into space. Launch vehicles carry satellites, spacecraft (crewed and uncrewed), and scientific instruments to their designated orbits or destinations.

A launch vehicle begins its journey from a launch pad, where its engines generate the thrust needed to propel it upward. As it climbs, spent stages are progressively jettisoned, reducing the vehicle’s mass and allowing it to continue accelerating until the payload reaches its designated orbit or trajectory.

Reaching space requires overcoming gravity and achieving extremely high speeds. Launch vehicles provide the energy needed to transport payloads from Earth’s surface into space with precision and safety.

Ignition and Thrust

Propellants burn inside the engines and produce high-velocity gases, generating a force that propels the vehicle upward in the opposite direction.

Acceleration

The launch vehicle continues to gain speed and altitude as propellant is consumed and its mass gradually decreases.

Stage Separation

In multi-stage launch vehicles, sections separate from the vehicle once their propellants are fully consumed, reducing dead weight and maximizing efficiency for the remainder of the journey.

Reaching Orbit or Other Destination

Once the required speed and altitude are achieved, the payload separates from the launch vehicle and begins its mission in orbit or continues toward its intended destination.

Provide Access to Space

Launch vehicles have transformed terrestrial economies, enabled scientific exploration and discovery beyond Earth and allowed human landings on the moon with aspirations to advance crewed exploration of other celestial bodies.

Enable the Placement of Satellites

Launch vehicles place satellites into orbit, enabling services such as communications, navigation, Earth observation, weather monitoring, and more.

Expand Scientific Discovery

Launch enables the deployment of telescopes, probes, and scientific instruments to study Earth, planets, stars, and cosmic phenomena.

Support Crewed Missions

Launch vehicles are the first step in transporting astronauts and spacecraft to orbit, space stations, and future destinations.

Enable the Space Economy

Advances in launch technology help increase the number of missions, reduce costs, and create more opportunities for innovation, services, and commercial activities in space.

Launch vehicles have evolved through continuous improvements in propulsion, guidance, materials, manufacturing, reliability, and operational efficiency, enabling greater payload capacity, mission flexibility, and access to space.

• Early Orbital Launch: The first launch vehicles enabled satellites and spacecraft to reach orbit, establishing the foundation for space exploration and utilization.
• Improved Performance and Reliability: Advances in propulsion, lightweight materials, guidance, navigation, and control enabled launch vehicles to carry heavier payloads with greater accuracy and reliability.
• Greater Mission Specialization: Launch systems diversified to serve different payload masses, orbital destinations, and mission requirements, from small satellites in low Earth orbit to large spacecraft and deep-space missions.
• Commercialization and Higher Launch Cadence: New manufacturing methods, commercial launch providers, and standardized vehicle families helped reduce costs, increase launch frequency, and expand access to space.
• Reusability: More recent systems have demonstrated the recovery and reuse of major launch vehicle components, particularly first stages, with the aim of lowering recurring launch costs and reducing turnaround time.
• The Next Phase: Current development is focused on further reducing cost, increasing launch cadence and reliability, improving operational efficiency, and enabling more sustainable and flexible access to orbit and beyond.