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

Oct 23, 2026
A NASA panel on Oct. 22 expressed evolving concerns about the lunar Human Landing System and the establishment of commercial low-Earth-orbit successors to the International Space Station.
Oct 22, 2026
The U.S. Space Force has tapped six companies for the first operational contracts of its Commercial Augmentation Space Reserve program, service officials revealed Oct. 21.
Oct 21, 2026
New Zealand spaceplane developer Dawn Aerospace wants to establish a suborbital payload launch program from the UK.
Oct 21, 2026
20 Twenties winner Jocelino Rodrigues helped open NASA’s mARC II plasma wind tunnel to SpaceX and Blue Origin, developed a draft ASTM standard and mentors future engineers.
Oct 20, 2026
SpaceX will attempt to land both the Super Heavy rocket and Starship upper stage as part of its next flight test, currently targeted to launch in November.
Oct 20, 2026
Recent restrictions on Ukraine's access to SpaceX's military-grade Starshield service risk undermining European confidence in U.S. aerospace and defense suppliers, as allies question their reliance on American-controlled military technologies.
Oct 20, 2026
RTX raised its full-year sales guidance following a strong third quarter, citing resilient aftermarket demand across Collins, Pratt & Whitney and Raytheon.
Oct 20, 2026
AST SpaceMobile plans to have limited direct-to-device coverage for its space-based communications system in a handful of markets before year-end.