Defense Space

Space-Based Missile Warning and Defense

Two ballistic targets soar into the night sky at Pacific Missile Range Facility Barking Sands in Kauai on July 24, 2021.

L3Harris is propelling the space industry forward with responsive, agile and affordable missile warning and defense solutions.

As global threats increase, so have our adversaries’ missile capabilities. A new generation of missiles has taken center stage: hypersonic glide vehicles. These weapons are not only faster and more maneuverable than traditional ballistic missiles, but they're also incredibly difficult to track. Because of the faint heat signature and unpredictable flight trajectory of hypersonic missiles, the only way to identify and track them is with advanced satellite technology.

Learn more about Space-Based Missile Warning and Defense

L3Harris' Role: Answering the Call to Defend Against Advanced Missile Threats

We’re answering the call to detect, identify and track advanced hypersonic missiles using multilayered, digitally engineered missile defense solutions. Our solutions provide immediate and continuous global coverage of threats using highly sensitive instruments that detect both dim and bright targets. This technology, equipped with real-time onboard processing, can follow hypersonic missiles at different geometries and atmospheric conditions.

Aerojet Rocketdyne hypersonic missile in flight

Space Domain Awareness

The key to dominating the space domain is knowing exactly what is in orbit. L3Harris technology detects, tracks and identifies all artificial objects in Earth orbit. The company provides innovative ground- and space-based sensors and algorithmic capabilities and tools to support rapid data acquisition, extraction and exploitation. L3Harris is also modernizing DoD sensors to bring Cold War-era sensors into today’s fight.

Mission Planning Tool (MPT)

Today’s complex missions require a non-traditional planning capability that can scale and expand to meet the emerging requirements — from the first day of the concept to last disposition of assets. The L3Harris Mission Planning Tool (MPT) provides this capability.

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Advanced Radar Solutions for Space Domain Awareness

L3Harris is a global radar systems engineering leader building upon decades of success in serving the U.S Space Surveillance Network (SSN) and the Space Superiority mission to deliver next-generation radar solutions for efficient, effective space battle management and command and control (C2).

Learn about Advanced Radar Solutions

Advanced Electro-optical System R&D and Sustainment for Space Domain Awareness

L3Harris advances the nation’s space superiority mission with services that keep U.S. Space Surveillance Network (SSN) optical sensors and systems running with high reliability and availability. We rapidly operationalize space domain awareness (SDA) research and development (R&D) to bring new, mission-critical capabilities to warfighters.

Learn about Advanced Electro-optical System

The Cygnus space freighter moments before its capture

L3Harris plays a key role in ensuring the U.S. and allies have freedom of action in space. The company also provides technology for the other side of that equation – denying that freedom to adversaries when needed. L3Harris provides a wide range of space control capabilities, including live, virtual, constructive environments for training and engineering, cybersecurity and program management. L3Harris is also at the forefront of space electronic warfare (EW), providing the first-ever ground-based satellite denial capability.

Counter Communications System

As satellites power ever-expanding technology, they drive capabilities both civilian and military wielded by friend and foe alike. The L3Harris Counter Communications System (CCS) gives the U.S. Space Force an invaluable tool that can shut down an adversary’s satellite connection and help safeguard U.S. interests in space and on the ground.

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Olympus

Today’s modeling and simulation (M&S) platforms are not optimized for rapid concept development and limit user ability to run large-scale scenarios.

Olympus’ faster-than-real-time, multidomain M&S capability fills these critical gaps to enhance joint domain operations and improve mission planning.

Learn about Olympus

Space Test and Training Range

L3Harris’ commitment to helping maintain America’s dominance in space spans more than 20 years.

As part of this effort, we engineered and maintain the Space Range Operations Center System of Systems that supports the United States' only Space Test and Training Range (STTR) mission.

Learn about Space Test and Training Range

Operational Space Command and Control (C2)

Space is vital to our modern way of life. But threats to our nation's space assets grow in scope and lethality each day. L3Harris’ space BMC3 solutions close the warfighting observe-orient-decide-act loop – to ensure that the U.S. is always faster than the threat.

L3Harris joins full SDA and space control resources to provide critical orbital analysis support, training and tools to all space C2. We support all levels of space C2 – tactical, operation and strategic – and continue to develop a training and wargaming environment to guide controllers and decision-makers.

Space Battle management Command, Control & Communications (BMC3)

Defense Space Resources

Space Superiority Solutions Brochure
Olympus Sell Sheet
Space-Based Missile Warning and Defense Sell Sheet
Supporting Warfighters from Adversary Threats Infographic

Dominate the Space Domain

L3Harris Enables Critical Defense in Space

Featured News

Editorial | 07. 22. 2026

The Next 250 Years Start With What We Build Now

The next era of American innovation will not be defined by a single invention or industry. It will be shaped by a new generation of technologies that are more autonomous, more connected, more adaptable and more software-driven than the systems that came before them.