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

Jul 08, 2025
The pace of in-space servicing missions is picking up, with at least nine endeavors planned over the next 18 months.
Jul 08, 2025
NASA has issued a request for proposals to establish joint government and commercial communications and navigation around the Earth, Moon and Mars.
Jul 03, 2025
The UK Space Agency plans to perform a space debris removal demo and has kicked off the search for a domestic vendor for the mission.
Jun 30, 2025
Thales Alenia Space says that the French government has appointed the Franco-Italian joint venture to lead development of a laser communications system in GEO.
Jun 30, 2025
AAC Clyde Space wants to double the size of its Vireon Earth-observation constellation and lure more European military space business, the Swedish company says.
Jun 27, 2025
Finland says it will acquire synthetic aperture radar satellites from Iceye, continuing the steady drumbeat of European countries buying into that capability.
Jun 27, 2025
Leading the U.S. space agency will fall to someone else, as the former Trump administration nominee contemplates his next steps.
Jun 27, 2025
An explosive ground test accident has claimed a fourth Starship vehicle.