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

Apr 14, 2025
Jeff Bezos' fiancee and five other women lifted off aboard Blue Origin's New Shepard launch system on April 14 for a 10-min. ride to and from suborbital space.
Apr 10, 2025
The Dragon capsule splashed down with its crew of four in the Pacific Ocean, ending a 3.5-day mission, as SpaceX shifts returns to the West Coast.
Apr 08, 2025
Astroscale U.S. plans to attempt two U.S. Space Force satellite refueling operations in geostationary orbit after its scheduled launch in the summer of 2026
Apr 08, 2025
Aspiring space station operator Vast says it has signed three international customers to fly payload facilities aboard its planned Haven-1 orbital outpost.
Apr 07, 2025
Sierra Space plans to fly a Honda-developed experimental fuel cell system to the International Space Station for testing in microgravity.
Apr 04, 2025
The International Space Station (ISS) National Laboratory plans to launch its Orbital Edge Accelerator program.
Apr 04, 2025
The newcomers can bid for Lane 1 work once they complete a successful first flight.
Apr 03, 2025
True Anomaly isoffering its Jackal autonomous spacecraft for missions in geosynchronous orbit and cislunar space.