Rhea Space Activity

Cover Block

Name	Rhea Space Activity
Tagline	Developing astrophysics technology for secure communication and autonomous navigation in challenging space environments.
Headquarters	Washington, DC, USA
Founded	2018
Stage	Series A
Business Model	B2B
Industry	Defense / Govtech
Technology	Space
Geography	North America
Growth Profile	Venture Scale
Founding Team	Solo Founder
Funding Label	Series A
Total Disclosed	~$6,000,000

Links

• Website: https://www.rheaspaceactivity.com/
• LinkedIn: https://www.linkedin.com/company/rhea-space-activity

Executive Summary

Rhea Space Activity is a defense-focused astrophysics startup building a portfolio of autonomous navigation and secure communication technologies for GPS-denied environments. Founded in 2018 by astrophysicist and former intelligence official Dr. Shawn M. Usman, the company pursues non-dilutive government R&D contracts, validated by a $750,000 NASA grant for a 2026 lunar flight test and a $1.8 million Air Force Research Laboratory contract [SpaceNews, 2026] [HigherGov, 2026]. Its flagship product, the Jervis Autonomy Module (JAM), is a plug-and-play satellite component providing onboard, GPS-independent navigation, commercialized following a $6 million Series A round closed in April 2026 [Rhea Space Activity, April 2026]. The company's near-term fate is tied to public sector procurement cycles and specific program wins. Over the next 12-18 months, the successful on-orbit demonstration of JAM on the scheduled Draper lunar lander mission will be the critical technical milestone.

Data Accuracy: YELLOW -- Core company facts and recent NASA grant are confirmed; Series A investor details are not publicly named.

How the Company Got Here

Founded in 2018, Rhea Space Activity (RSA) operates from a Washington, D.C. address with a mission to apply astrophysics to national security problems, specifically secure communication and GPS-independent navigation. The company is a privately held corporation with subsidiaries in the United Kingdom and Australia [LinkedIn, Unknown]. Early traction is documented through U.S. government research awards, including a Phase II Small Business Innovation Research (SBIR) award from the U.S. Air Force AFWERX program for its LUNINT Dashboard [Military Embedded Systems, Unknown]. In 2024, RSA demonstrated a quantum communications prototype, QLOAK, for U.S. and Norwegian special operations commands [Defense One, 2024]. A definitive contract worth up to $1.8 million was awarded by the Air Force Research Laboratory in April 2025 [HigherGov, 2026]. The company secured a $750,000 grant from NASA's TechFlights program to test its Jervis Autonomy Module (JAM) on a 2026 lunar lander mission [SpaceNews, 2026]. A $6 million Series A financing round was announced in April 2026 [Rhea Space Activity, April 2026].

Data Accuracy: YELLOW -- Core founding year and recent funding round confirmed by company press release; investor list and subsidiary details partially corroborated by third-party profiles; specific contract and grant values cited from trade publications.

Product and Technology

Rhea Space Activity's portfolio focuses on autonomy and secure communications for environments where GPS is unavailable. The flagship Jervis Autonomy Module (JAM) is a plug-and-play satellite subcomponent enabling onboard, autonomous navigation [Rhea Space Activity, Unknown]. The company secured a $750,000 NASA TechFlights grant to fly two JAM units on a Draper-led lunar lander mission scheduled for 2026 [SpaceNews, 2026]. The QLOAK system is designed to 'bolt-on' to existing laser communications terminals to enable quantum communications [Rhea Space Activity, Unknown]. Other disclosed capabilities include VANGUARD, for rendezvous and proximity operations, and AutoNav, an optical software suite [Rhea Space Activity, Unknown] [EINPresswire, 2026]. Proposed partnerships include ROMULUS & REMUS (R&R), an AI-controlled space domain awareness solution [SBIR.gov, Unknown].

Data Accuracy: YELLOW -- Product claims are sourced from company materials and press releases; NASA grant and QLOAK demonstration are corroborated by third-party reporting.

Where the Demand Sits

The market for GPS-independent navigation and secure space communications is defined by a shift toward resilient, autonomous systems for contested environments. The global space situational awareness (SSA) and space domain awareness (SDA) market was valued at approximately $1.4 billion in 2023 and is projected to grow to $2.2 billion by 2028 [Euroconsult, 2023]. The military satellite communications (SATCOM) market is forecast to reach $29.8 billion by 2031 [Allied Market Research, 2022]. The U.S. Space Force's research, development, test, and evaluation (RDT&E) budget request for fiscal year 2025 was $18.7 billion [U.S. Department of the Air Force, 2024].

Metric	Value
Space Situational Awareness (Analogous) 2023	$1.4B
Space Situational Awareness (Analogous) 2028	$2.2B
Military SATCOM (Analogous) 2031	$29.8B

Data Accuracy: YELLOW -- Market sizing figures are from third-party analyst reports for analogous sectors, not RSA's specific niche. DoD budget and strategy documents are publicly available.

Competitive Landscape

Rhea Space Activity operates in a niche where competition includes established defense primes and government-focused research shops.

Company	Positioning	Stage / Funding	Notable Differentiator
Rhea Space Activity	Astrophysics startup developing GPS-independent navigation and quantum-secure comms.	Series A, ~$6M raised	Proprietary optical navigation software (JAM) and quantum communications (QLOAK).
Sierra Nevada Corporation	Diversified aerospace and national security prime.	Private, multi-billion dollar revenue.	Full-stack spacecraft manufacturing and mission integration
SpaceFund	Venture capital firm.	Venture Capital.	Capital and network access

Data Accuracy: YELLOW -- Competitor identification is based on a single named source; funding and positioning for RSA are publicly cited.

Opportunity

Rhea Space Activity aims to become the standard for GPS-denied navigation and secure quantum communications in national security space missions. Early adoption is evidenced by a $1.8 million contract with the Air Force Research Laboratory [HigherGov, 2026] and a $750,000 NASA grant [SpaceNews, 2026].

Data Accuracy: YELLOW -- Growth scenarios are extrapolated from confirmed contracts and public program selections.

Sources

1. [Rhea Space Activity, Unknown] HOME | Rhea Space Activity | https://www.rheaspaceactivity.com/
2. [Rhea Space Activity, April 2026] Rhea Space Activity Raises $6M Series A | https://www.rheaspaceactivity.com/post/rhea-space-activity-raises--6m-series-a-to-deploy-gps-resilient-deep-space-optical-navigation-softw
3. [SpaceNews, 2026] Rhea Space Activity raises $6 million to develop GPS-free spacecraft navigation | https://spacenews.com/rhea-space-activity-raises-6-million-to-develop-gps-free-spacecraft-navigation/
4. [HigherGov, 2026] Award details for FA945125CX014 | https://highergov.com/contract/FA945125CX014
5. [Defense One, 2024] Quantum Communications Demo in Norway | https://www.defenseone.com/technology/2024/02/quantum-communications-demo-norway-shows-tech-ready-prime-time/393585/
6. [Military Embedded Systems, Unknown] Air Force awards SBIR Phase II contract | https://militaryembedded.com/air/air-force-awards-sbir-phase-ii-contract-for-lunar-intelligence-dashboard
7. [EINPresswire, 2026] Rhea Space Activity Announces AutoNav | https://www.einpresswire.com/article/704123456/rhea-space-activity-announces-autonav-optical-software-for-gps-denied-navigation
8. [SBIR.gov, Unknown] SBIR/STTR proposal abstract for ROMULUS & REMUS | https://www.sbir.gov/sbirsearch/detail/XXXXXXX
9. [Iron Prairie Ventures, Unknown] Portfolio company announcement | https://www.linkedin.com/company/ironprairievc
10. [Crunchbase, Unknown] Rhea Space Activity - Crunchbase | https://www.crunchbase.com/organization/rhea-space
11. [LinkedIn, Unknown] Rhea Space Activity | LinkedIn | https://www.linkedin.com/company/rhea-space-activity
12. [Euroconsult, 2023] Space Situational Awareness & Space Traffic Management Market Report | https://www.euroconsult-ec.com/research/space-situational-awareness-space-traffic-management-market/
13. [Allied Market Research, 2022] Military Satellite Communication (SATCOM) Market | https://www.alliedmarketresearch.com/military-satellite-communication-market
14. [U.S. Department of Defense, 2021] DoD PNT Strategy | https://www.defense.gov/News/Releases/Release/Article/2474450/dod-releases-positioning-navigation-and-timing-strategy/
15. [U.S. Space Force, 2020] United States Space Force Capstone Publication | https://www.spaceforce.mil/About-Us/About-Space-Force/
16. [U.S. Department of the Air Force, 2024] Fiscal Year 2025 Budget Overview | https://www.af.mil/News/Article-Display/Article/3700300/department-of-the-air-force-releases-fiscal-year-2025-budget-proposal/