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

Mar 27, 2026
The agency wants commercial companies to take on a larger role in its Artemis lunar exploration initiative.
Mar 25, 2026
An industry advocacy organization told Congress its members were “concerned and confused” by the latest pivot in NASA’s post-ISS plans.
Mar 25, 2026
Trump administration proposes streamlined OSC payload certification for novel space activities like debris removal and asteroid mining to boost commercial innovation.
Mar 24, 2026
Space42 is looking to get the go-ahead for a new generation of Earth-observation systems, while finalizing with Viasat an expansion of Equatys.
Mar 24, 2026
United Airlines is now outfitting the mainline fleet with SpaceX Starlink, expecting to have roughly half those airframes done by the end of 2026.
Mar 23, 2026
Russia is likely going to boost its military space launches in remote sensing to close an emerging capability gap, a U.S. Space Force official says.
Mar 23, 2026
Singapore's DSTA has signed a contract with AST SpaceMobile to provide government agencies with space-based cellular broadband connectivity.
Mar 20, 2026
Airbus Helicopters and Spanish telecoms provider Telefonica will jointly demonstrate the potential use of 5G communications in military helicopters and UAS.