The company will showcase solutions to counter evolving security threats across all domains.
Lockheed is a strategic investor and partner of Terran Orbital, which manufactures Lockheed's 150 kg LM-50 bus.
The decision comes less than three weeks after the Federal Trade Commission filed a lawsuit to block the acquisition.
The Mars Ascent Vehicle will be transported to Mars on a NASA-led Sample Retrieval Lander, which will also carry an ESA-developed rover.
Nicholson led the PenFed Foundation after retiring from the military in 2018.
In order to increase speed, resilience, and cyber-hardening, NGG is being built on Lockheed Martin's LM 2100 Combat Bus.
In response to evolving security threats, the company will demonstrate advanced network capabilities.