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

Jun 20, 2025
Varda Space plans to bring development of its Winnebago reentry capsule in-house.
Jun 20, 2025
NASA, Axiom Space and SpaceX are standing down from their targeted June 22 launch of the Axiom 4 private astronaut mission to the International Space Station.
Jun 19, 2025
Finnish satellite-maker Iceye says it will invest more than $287 million to scale up its SAR spacecraft production capacity and speed technology developments.
Jun 18, 2025
NASA, Axiom Space and SpaceX have again delayed the planned launch of Axiom’s fourth private astronaut mission to the International Space Station.
Jun 18, 2025
Honda has entered the commercial spaceflight arena with the successful demonstration of a reusable launch vehicle.
Jun 18, 2025
Virgin Galactic says its on track to start final assembly of the first Delta Class spaceplane and remains on schedule to begin flight tests in early 2026.
Jun 17, 2025
Blue Origin has set June 21 for the launch of its 13th suborbital New Shepard private astronaut mission from West Texas with a six-person crew.
Jun 16, 2025
NASA, Axiom Space and SpaceX are looking to no earlier than June 19 for the thrice-delayed launch of Axiom's fourth private astronaut mission to the ISS.