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 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.
Apr 03, 2026
After 20 years of development, an Orion spacecraft flies with crew for the first time.
Apr 02, 2026
With launch costs slashed in recent years, one startup is targeting what it sees as the next barrier in space: making it cheaper—and easier—to actually operate there.
Apr 02, 2026
The space company is scaling its lunar plans to match NASA’s new ambitions and returning to a rapid launch cadence.
Apr 01, 2026
New rockets that were supposed to solve a persistent launcher shortage are falling short amid delays and technical setbacks.
Mar 31, 2026
Northrop Grumman plans to test a new nozzle for the Graphite Epoxy Motors (GEM) used on United Launch Alliance’s (ULA) Vulcan and Atlas rockets.
Mar 31, 2026
Virgin Galactic is set to begin ground tests of its first new-build Delta-class spaceship, paving the way for follow-on flight tests at Spaceport America in Q3.