This article is based on an official press release from NASA.

NASA has awarded an $8.4 million contract to Nevada-based Denmar Technical Services to modify a Boeing 737-700 into a dedicated reduced-gravity test aircraft. Announced on June 1, 2026, the acquisition is a critical step in preparing for the agency’s upcoming lunar exploration missions.

According to the official NASA press release, the newly modified aircraft will serve a highly specific and vital role for the Human Spaceflight Mission Directorate. By flying in parabolic arcs to simulate the one-sixth gravity of the Moon, the aircraft will allow engineers and astronauts to test next-generation equipment safely.

“The aircraft will be used to validate astronaut lunar suits and associated crew systems required to support Artemis mission objectives.”

— NASA Press Release

This move marks a strategic shift for the space agency, transitioning away from reliance on commercial zero-gravity flight providers and bringing the capability back in-house to ensure readiness for the planned 2028 Artemis III lunar landing.

Contract Details and Aircraft Modernization

Upgrading the “Vomit Comet” Fleet

The firm-fixed-price contract awarded to Denmar Technical Services carries a maximum potential value of $8.4 million and includes time and material provisions for unforeseen work. The modification project is scheduled to run through February 1, 2027.

Historically, NASA operated its own reduced-gravity aircraft, most notably the KC-135 Stratotanker and the McDonnell Douglas C-9, which earned the affectionate nickname “Vomit Comet” among astronauts. In recent years, the agency retired its dedicated fleet and relied heavily on commercial providers, primarily utilizing an aging Boeing 727-200 operated by the Zero Gravity Corporation. By purchasing and modifying a commercial Boeing 737-700, NASA is upgrading its testing infrastructure to a much more modern, efficient, and easily maintainable airframe.

Once the extensive structural modifications are complete, NASA’s Armstrong Flight Research Center in Edwards, California, will officially own the aircraft. Ongoing flight operations will be overseen by the Johnson Space Center in Houston, Texas.

The Artemis Connection and Spacesuit Validation

Meeting the 2028 Lunar Landing Goal

The primary objective of the newly modified Boeing 737-700 is to test the next-generation lunar spacesuits currently under development by Axiom Space. Simulating the Moon’s partial gravity is an absolute necessity for evaluating suit mobility, joint flexibility, and life-support systems before astronauts step onto the lunar surface.

The timeline for these validation tests is critical. Following the successful crewed lunar flyby of Artemis II in April 2026, NASA is heavily focused on the Artemis III mission, which targets a human return to the Moon by 2028.

AirPro News analysis

We note that spacesuit development has been a closely watched bottleneck for the Artemis program. An April 2026 report by the NASA Office of Inspector General (OIG) cautioned that spacesuit development was behind schedule and might face delays pushing readiness to 2031. However, NASA Administrator Jared Isaacman has publicly pushed back against the OIG’s estimate, maintaining confidence in the 2028 timeline.

Securing a dedicated, in-house reduced-gravity aircraft appears to be a direct measure to mitigate testing delays and keep the Axiom suit development on track. While the $8.4 million contract is a relatively small financial figure for NASA, it represents a massive, critical-path milestone. Taking ownership of the aircraft ensures the agency has uninterrupted, on-demand access to testing facilities as the 2028 deadline approaches.

About Denmar Technical Services

Specialized Engineering for Parabolic Flight

Modifying a standard commercial airliner to withstand the repeated structural stresses of two-G pullouts and zero-G push-overs, is a highly specialized engineering feat. Denmar Technical Services, an employee-owned small business headquartered in Reno, Nevada, was selected for its deep expertise in this niche field.

Founded in the early 1980s, Denmar specializes in aircraft modifications, flight test operations, and advanced mission system development. The company has a long-standing relationship with the U.S. Government and the Department of Defense, having previously worked on highly specialized, classified radar-testing aircraft such as the Air Force’s NT-43A. Their background in structural analysis and airworthiness certification makes them uniquely suited to ensure the Boeing 737-700 can safely execute parabolic maneuvers for human spaceflight testing.

Frequently Asked Questions

What is a reduced-gravity aircraft?

A reduced-gravity aircraft flies in specific wave-like patterns called parabolic arcs. At the top of the arc, passengers and payloads experience a period of weightlessness or partial gravity (such as lunar or Martian gravity) for a short duration, allowing for the testing of equipment in space-like conditions.

Why is NASA buying a Boeing 737-700?

NASA is transitioning from renting time on older, 1970s-era commercial jets to owning a modern Boeing 737-700. This provides the agency with a more reliable, efficient, and easily maintainable aircraft, ensuring on-demand access for critical Artemis testing.

Sources:
NASA Press Release: NASA Awards Modification Contract for Reduced Gravity Test Aircraft

This article is based on an official press release from Impulse Space.

Impulse Space Secures $500 Million Series D to Scale In-Space Mobility

On June 2, 2026, California-based aerospace manufacturer Impulse Space announced the successful closure of a $500 million Series D funding round. According to the company’s official press release, this latest capital injection brings its total funding to over $1 billion and elevates its post-money valuation to $4.26 billion.

The Investments round was co-led by 137 Ventures and BANNER VC, with additional participation from Founders Fund, Lux Capital, and Linse Capital. Impulse Space, founded in 2021 by former SpaceX propulsion head Tom Mueller, specializes in “in-space mobility infrastructure”, developing spacecraft and Propulsion systems designed to transport satellites and payloads to their final orbits after initial deployment.

The significance of this funding highlights a growing industry focus on the post-launch bottleneck. While launch costs have decreased and flight frequencies have risen over the past decade, spacecraft have historically been locked into single orbits or forced to rely on slow orbital transfers. Impulse Space aims to provide fast, precise, and affordable transportation within space.

Scaling Operations and Workforce

Impulse Space stated in its release that the new capital will be aggressively deployed to scale Manufacturing capacity and expand its workforce to meet surging demand across commercial, civil, and government sectors. The company recently surpassed 500 employees and currently has over 200 open positions.

“Often in a fundraise like this, there’s some narrative of, ‘Okay, well, now we move into this new line of business, or now we go build the factory in Ohio.’ There’s none of that here. This is really about, ‘We need more of the same. We need to continue on the same trajectory we’re on.'”

Romo added that the company has a pressing need for talent across all departments, noting he wished they had reached 700 employees already.

Expanding Geographic Footprint

To support this rapid growth, the company has more than doubled its headcount over the past year. While headquartered in Redondo Beach, California, Impulse Space has recently opened new branches in Washington, D.C., and Boulder, Colorado, to tap into broader aerospace talent pools and maintain proximity to key government partners.

Vehicle Fleet and Propulsion Systems

The company is currently developing and operating a fleet of vehicles tailored for different orbital requirements. Its operational spacecraft, Mira, is designed for precision maneuvering, rapid orbital transfers, and complex rendezvous operations. According to the company, Mira has already flown three successful missions, with the most recent launching in November 2025.

Looking ahead, Impulse Space plans to debut Helios in 2027. Helios is a larger, high-energy transfer vehicle, often referred to as a “kick stage,” designed to move heavier payloads to distant destinations like Geosynchronous Orbit (GEO) at unprecedented speeds.

“For Helios, commercial customers can launch on a Falcon 9 and take six, eight or 10 months to reach their final orbit. Our pitch is: ‘Launch with Helios and we’ll get you there the same day.'”

Tailored Engine Family

To support its vehicles and its commercial “Caravan” rideshare program, Impulse Space is developing a specialized family of engines. This includes the Saiph thruster for precision repositioning, the Deneb engine for high-energy, long-distance transport, and the Rigel system, a throttleable engine designed for responsive maneuvers and potential lunar lander applications.

Strategic Partnerships: Defense and Deep Space

Beyond commercial satellite transport, Impulse Space is actively expanding its footprint in the defense and civil space sectors. The company is collaborating with defense technology firm Anduril Industries to create prototypes of space-based interceptors. This initiative is part of the development for the “Golden Dome” missile defense shield, a layered system intended to protect the United States from foreign attacks.

In the civil sector, Impulse Space is reportedly in daily discussions with NASA regarding deep space missions. The company aims to utilize its Helios kick stage atop medium-launch rockets to assist NASA in transporting heavy mass to the lunar surface in support of a planned moon base.

“Launch has pretty much been solved. The challenge now is getting everywhere else beyond low Earth orbit. I think that’s what we need to usher in first the space economy, and then really what I call the true space age, where it’s not unusual to be working and building in space.”

AirPro News analysis

The massive $4.26 billion valuation of Impulse Space underscores a pivotal shift in space venture capital. For years, Strategy heavily favored launch providers. Now, as the challenge of reaching orbit becomes commoditized, capital is flowing into the “post-launch” economy. Impulse Space’s promise of “same-day delivery” to high-energy orbits represents a paradigm shift for commercial satellite operators. By reducing orbital transfer times from months to hours, operators can begin generating revenue significantly earlier, fundamentally altering the financial models of satellite constellations.

Frequently Asked Questions

What is Impulse Space’s current valuation?
Following its $500 million Series D funding round, Impulse Space is valued at $4.26 billion (post-money).

Who led the Series D funding round?
The round was co-led by 137 Ventures and BANNER VC, with participation from Founders Fund, Lux Capital, and Linse Capital.

What is a “space tug”?
A space tug, or in-space mobility vehicle, is a spacecraft designed to transport satellites and other payloads from their initial drop-off orbit to their final operational destination in space.

Sources

• Impulse Space

This article is based on an official press release from Voyager Technologies.

On June 2, 2026, Denver-based aerospace and defense firm Voyager Technologies (NYSE: VOYG) announced a definitive agreement to acquire Astrobotic Technology for approximately $300 million. According to the company’s press release, the Acquisitions is designed to transform Voyager into an end-to-end, “full-stack” lunar infrastructure provider. The transaction, which includes contingent consideration, will be structured as a combination of cash and stock.

The strategic consolidation aligns closely with NASA’s Artemis program and the agency’s aggressive mandate, championed by NASA Administrator Jared Isaacman, to establish a permanent American presence on the Moon by 2028. By absorbing the Pittsburgh-based commercial lunar logistics pioneer, Voyager aims to capture lucrative contracts under NASA’s Commercial Lunar Payload Services (CLPS) initiative.

Pending customary regulatory approvals, the deal is expected to close in early July 2026. Following the acquisition, Astrobotic will serve as a core pillar of Voyager’s strategic lunar initiative, with Astrobotic’s existing “Moon Base” headquarters in Pennsylvania transitioning into the central hub for Voyager’s broader lunar operations.

Strategic Synergies and the “Full-Stack” Lunar Ecosystem

The primary driver behind this $300 million acquisition is the creation of a comprehensive surface ecosystem. Prior to this announcement, Voyager’s lunar portfolio already included strategic Investments in long-duration habitation through Max Space, as well as proprietary dust-mitigation coatings and in-situ resource utilization technologies.

By integrating Astrobotic, the combined entity will control capabilities across nearly every logistical aspect of a deep-space lunar mission. According to the release, these integrated capabilities will feature Earth-to-Moon transportation via Astrobotic’s Peregrine and Griffin landers, surface power through the LunaGrid solar distribution system, and end-to-end mission management. Voyager has stated its intention to immediately accelerate financial investment to scale Astrobotic’s lunar and reusable rocket programs.

Leadership Perspectives

Executives from both companies emphasized the necessity of scale and robust infrastructure to meet the demands of the modern space economy. In the official announcement, Voyager Technologies Chairman and CEO Dylan Taylor highlighted the operational resilience required for the future of lunar exploration:

“We are building the infrastructure foundation that will make America’s permanent presence on the Moon a reality. Achieving that vision requires robust operational systems that match the resilience necessary for critical, repeatable missions. With Astrobotic, Voyager is now a lunar platform that will have capability at every infrastructure layer needed to put Americans on the lunar surface and keep them there.”

Astrobotic CEO John Thornton echoed this sentiment, noting that the acquisition provides the necessary resources to fulfill the company’s founding vision:

“From Day One, Astrobotic set out to prove that commercial companies can deliver to the lunar surface. Joining Voyager provides the scale, resources, and long-term commitment our mission calls for. Our team, our technology, and our homes in Pittsburgh and Mojave remain at the center of what we’re building. Together with Voyager, we can accelerate the timeline for establishing America’s Moon Base.”

Speaking on the immediate reality of building the lunar economy, Voyager Technologies President Matt Kuta succinctly added:

“This is happening now.”

Astrobotic’s Journey and Future Milestones

Founded in 2007 as a Carnegie Mellon University spinout, Astrobotic has secured more than $600 million in Contracts from NASA and the Department of Defense over its history. In addition to its Pittsburgh headquarters, the company operates a reusable rocket testing facility at the Mojave Air and Space Port in California, a site it acquired following the bankruptcy of Masten Space Systems in 2022.

The acquisition comes as Astrobotic looks to prove its capabilities following a highly publicized setback. The company’s first lander, Peregrine Mission One, launched on January 8, 2024, but suffered a propellant leak and failed to reach the Moon, reentering Earth’s atmosphere 10 days later. Despite these past challenges, the company’s next major mission, NASA’s Moon Base II Griffin Mission One, utilizing the Griffin-1 lunar lander, remains on schedule to launch later in 2026.

AirPro News analysis

We view this acquisition as a clear indicator of a growing trend of consolidation within the commercial space sector. As the “lunar economy” transitions from theoretical concepts to active infrastructure development, larger aerospace conglomerates like Voyager are recognizing the need to acquire specialized, pioneering Startups. By building vertically integrated service offerings, these companies are signaling to both investors and government agencies that the private sector is aggressively positioning itself to be the primary logistical backbone for the next decade of lunar exploration. The success of this merger will likely hinge on the upcoming Griffin Mission One and Voyager’s ability to seamlessly integrate Astrobotic’s hardware with its existing habitation and resource technologies.

Frequently Asked Questions

• What is the value of the Voyager-Astrobotic deal?
  Voyager Technologies is acquiring Astrobotic Technology for up to approximately $300 million, utilizing a combination of cash and stock that includes contingent consideration.
• When is the acquisition expected to close?
  The deal is expected to close in early July 2026, subject to customary regulatory approvals.
• What is Astrobotic’s next major mission?
  Astrobotic is scheduled to launch NASA’s Moon Base II Griffin Mission One, utilizing the Griffin-1 lunar lander, later in 2026.

Sources

• Voyager Technologies Press Release