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 07, 2025
Venture capital dealmaking in space technology reached $642 million in the first two months of the year, according to PitchBook data.
Mar 07, 2025
Singapore-based Transcelestial will place its satellite-to-ground laser communication system on the 6GStarLab satellite, a low-Earth-orbit spacecraft.
Mar 07, 2025
NASA’s commercial lunar services initiative scores another major win.
Mar 07, 2025
At about 8 min. and 30 sec. into flight Starship–in the final 20 or 30 sec. of its ascent burn–lost several engines and attitude control.
Mar 06, 2025
The 52-min. launch window is currently set to open at 9:25 a.m. EST.
Mar 05, 2025
Civilian cellular network technology has many military uses.
Mar 04, 2025
The countdown recycled back to a preestablished T-minus-40 sec. mark for assessment, but SpaceX called off the launch for further analysis.
Mar 04, 2025
The launch is planned for the second half of 2026, the Japanese company said in a statement.