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

May 02, 2025
Amazon plans to use the satellites to roll out high-speed internet service later this year.
May 02, 2025
Our roundup of the main aerospace and defense stories making the news this week.
May 01, 2025
The FAA has cleared SpaceX to increase the number of Falcon 9 flights from Vandenberg SFB, California, from 36 to up to 50 operations per year.
May 01, 2025
Amazon's initial clutch of Kuiper satellites reached orbit April 28.
May 01, 2025
True Anomaly, a manufacturer of defense spacecraft, has raised a $260 million Series C round.
Apr 30, 2025
Satellite operator SES Global is expecting a 30% boost in capacity of its O3b mPower medium Earth orbit network as two more spacecraft come online in May.
Apr 29, 2025
Axiom Space’s fourth four-person private astronaut mission to the International Space Station is set for May 29.
Apr 29, 2025
A ULA Atlas V rocket has lifted off from Cape Canaveral to deliver the first 27 satellites for Amazon’s Kuiper broadband communications network into LEO.