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

Feb 26, 2026
Sierra Space has named former Ursa Major leader Dan Jablonsky as its first permanent CEO in more than one year, the company announced Feb. 26.
Feb 26, 2026
Potential suborbital space launch provider Starfighters Space announced that founder Rick Svetkoff has resigned as chairman, CEO, president and director.
Feb 25, 2026
Lunar landing upstart Intuitive Machines announced a surprise $175 million stock sale Feb. 25, in part to support potential growth in the orbital data center market.
Feb 20, 2026
Tory Bruno joined Blue Origin late last year as the U.S. faces an “urgent need” to hone dynamic space operations in a more contested environment, he says.
Feb 18, 2026
Astrolight plans to demonstrate its new laser communications terminals in space for the first time following the launch of SpaceX’s Transporter-16 mission.
Feb 17, 2026
Spanish startup Sateliot has booked a launch with compatriot PLD Space to deploy its first two high-capacity 5G direct-to-device satellites.
Feb 17, 2026
AAC Clyde Space says it is moving ahead with plans to expand its Vireon Earth-observation satellite constellation.
Feb 17, 2026
British startup Orbex has made what seems like a last-minute push to generate appetite in its business as it faces closure, releasing previously unseen images of its Prime rocket.