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 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.
Mar 04, 2025
Spire in February warned that it could run out of money within a year absent the deal.
Mar 04, 2025
The tests were on behalf of Japan’s Space Compass Corporation and telecoms partner NTT Docomo.
Mar 04, 2025
The company did not immediately say what the issue or issues were.
Mar 03, 2025
The Falcon 9 lifted off from Cape Canaveral Space Force Station at 9:24 p.m. EST March 2.
Mar 03, 2025
The launch window for the flight at the European spaceport in Kourou, French Guiana, was due to open at 1:24 p.m. local time.