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

Dec 23, 2024
In February 2024, the U.S. Space Force set up a pilot program called Tactical Surveillance, Reconnaissance and Tracking (TacSRT).
Dec 20, 2024
The nomination of entrepreneur and private astronaut Jared Isaacman to lead NASA may prove to be a turning point.
Dec 20, 2024
The return of U.S. astronauts to the Moon won’t happen until at least mid-2027, says NASA.
Dec 20, 2024
A look at which trends are gaining and losing popularity in the space sector.
Dec 19, 2024
The European Space Agency (ESA) has signed €350 million ($363 million) in contracts with Avio to further evolve the Vega launcher family.
Dec 19, 2024
Stephane Israel is stepping down as Arianespace CEO and member of ArianeGroup's executive committee on Dec. 31, to be succeeded by David Cavailloles.
Dec 18, 2024
Ispace says it is targeting another attempt to touch down a lunar lander on the Moon’s surface around four to five months after launch on a SpaceX Falcon 9.
Dec 18, 2024
"When you’re using taxpayer direct dollars to fund something, you don't want to fail," SpaceX President Gwynne Shotwell says. "I think that's a huge mistake."