Launch Vehicles & Propulsion

Space launch vehicles are designed to transport payloads such as satellites, spacecraft, and cargo into low-Earth orbit and beyond. These vehicles rely on propulsion systems that generate immense thrust to overcome Earth's gravitational pull and achieve the necessary velocity for orbital insertion or interplanetary travel. The propulsion systems used in launch vehicles typically employ chemical propellants, which undergo controlled combustion to produce high-temperature, high-pressure gases that are expelled through a nozzle, generating thrust. Common propellant combinations include liquid hydrogen and liquid oxygen (used in the Space Shuttle main engines), or solid propellants (used in some rocket boosters). Advanced propulsion technologies, such as ion engines and nuclear thermal rockets, are also being explored for future space exploration missions.

News & Analysis

Aug 29, 2025
Rocket Lab remains confident about achieving the inaugural launch of its medium-class Neutron rocket this year from its new Launch Complex 3.
Aug 28, 2025
Skylo Technologies says it is working with mobile phone chipset providers to roll out the service commercially.
Aug 28, 2025
Singapore is seeking to carve out a role in the fast-growing global space sector, with plans to commercialize and scale up home-grown technologies.
Aug 28, 2025
Defense companies are bracing for risk as the Pentagon signals it may require self-funded prototypes for space-based interceptors.
Aug 28, 2025
Following a trio of failed flight tests, SpaceX’s new launch system completed a full-duration demonstration.
Aug 27, 2025
Generating some 16.5 million lb. of thrust, the 404-ft tall Starship-Super Heavy headed toward a suborbital trajectory for a planned 66-min. flight demonstration.
Aug 26, 2025
The Italian Space Agency signed an agreement with SpaceX to fly several science payloads on an upcoming Starship mission or missions to Mars.
Aug 26, 2025
SpaceX’s 10th flight test of a Starship-Super Heavy launch system remained on hold Aug. 25 following a scrub due to lightning concerns at the company’s Boca Chica Beach, Texas, spaceport.