The U.S. Air Force’s LGM-35A Sentinel program is the weapons replacement for the Minuteman III intercontinental ballistic missile system (ICBM).
National Security Space
National Security Space
Protecting the Nation and Preserving Freedom
Defining Possible in National Security Space
Northrop Grumman’s mission expertise in strategic deterrence, secure communications, missile warning and missile defense, space security and advanced technologies enable our national security space customers to carry out their most vital missions – protecting the nation, the warfighter and preserving freedom, now and for decades to come.
Global Security Space
![An intercontinental ballistic missile blasting through clouds](https://www.northropgrumman.com/wp-content/uploads/GBSD_Launch_2021_Update.jpg?w=1200)
![Defense Support Program (DSP)](https://www.northropgrumman.com/wp-content/uploads/ss_ds-12018_001_734x265.jpg?w=734)
Defense Support Program (DSP)
For the last 50 years Northrop Grumman has been at the backbone of our nation’s space-based missile warning systems.
![missile intercept](https://www.northropgrumman.com/wp-content/uploads/Space-and-Missile-Defense-Symposium-SMD-hero-001.jpg?w=1200)
Missile Defense
We’re defining what is possible across multiple domains to ensure reliable, effective protection against traditional and emerging hypersonic threats.
![A dark sky with two large satellites orbiting the Earth in outer space](https://www.northropgrumman.com/wp-content/uploads/Communications_Satellites_2020_2.jpg?w=1200)
Protected SatCom
For decades, Northrop Grumman has been the premiere provider of jam-resistant payloads to ensure protected communications for essential communications.
![Mission Extension Vehicle attached to a large satellite orbiting the Earth](https://www.northropgrumman.com/wp-content/uploads/MEV_CGI_Shot_4_Still_3840x2160_v02_CC_200615.jpg?w=1200)
Space Mobility and Logistics
Applying technologies developed for our Mission Extension Vehicle are paving the way for in-orbit servicing, life extension and robotic assembly.
![Rocket taking off from launch pad, with smoke rising from the ground in front of blue sky](https://www.northropgrumman.com/wp-content/uploads/baur_AUR0081.jpg?w=1200)
Space Launch
We have a proud heritage of providing responsive and reliable space launch for small and medium-class military payloads.
![Minuteman III Launch](https://www.northropgrumman.com/wp-content/uploads/MinutemanLaunch.jpg?w=480)
Propulsion Systems
Northrop Grumman has been providing reliable propulsion systems for civil and military applications since the very beginning of powered spaceflight.
![Propulsion Systems Analyses](https://www.northropgrumman.com/wp-content/uploads/Propulsion-Systems-Analyses-body-image-002.jpg?w=1113)
Propulsion Products and Services
A complete range of propulsion products and services to develop and produce high quality flight hardware.