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 10, 2026
Global orbital launches surge 25% in 2025 as SpaceX dominates with 165 missions while Starlink constellation tops 10,100 satellites.
Apr 10, 2026
Vantor expands its Worldview Legion constellation with new 40 cm and 20 cm imaging satellites for persistent high-resolution monitoring.
Apr 10, 2026
Aviation Week editors covering commercial aviation and space convene to discuss how and why airlines are increasingly offering fast inflight Wi-Fi for free.
Apr 09, 2026
Portal Space Systems has raised $50 million in Series A funding to continue developing maneuverable satellites for multiple orbits, the company says.
Apr 07, 2026
South Korea launch service company Innospace is expanding its space activities, looking to also build up a satellite development and manufacturing business.
Apr 07, 2026
On-orbit servicing startup Starfish Space raised more than $100 million in a Series B funding round, buoyed by a satellite deorbiting contract with the U.S.
Apr 06, 2026
Artemis II astronauts break distance records and offer unprecedented insights into the Moon's surface, paving the way for future lunar exploration.
Apr 06, 2026
Firefly Aerospace and Seagate Space Corp. partner to develop an offshore launch platform, aiming to expand orbital access for government and commercial missions.