Reditus Space, a space startup focused on recoverable orbital architectures, has completed assembling its maiden spacecraft, ENOS. The company announced July 13, 2026, that the 200-kilogram vehicle is now fully integrated and preparing for its inaugural orbital mission scheduled for later this fall.
The ENOS spacecraft will launch into low Earth orbit aboard a SpaceX Falcon 9 rideshare mission. Following a planned two-month orbital stay to conduct technology validation and host microgravity payloads, the vehicle will perform a deorbit burn, reenter the atmosphere, and splash down under parachutes off the coast of Florida.
A Singletary Design Paradigm
Reditus Space is entering a rapidly expanding market of logistics companies targeting space manufacturing and pharmaceutical research. However, while most competitors rely on a classic modular configuration; where a standard satellite service bus ejects a small, heavy capsule to make the fiery journey home; Reditus is attempting a far more integrated architecture.
“In contrast to a more traditional reentry mission where you would have a big satellite and a small capsule attached to it that makes its reentry, this is a singular system where more than 80% of the mass of the actual system makes its way back down to Earth to have the ability to be launched again in the future,”
– Stef Crum, Reditus Space Chief Executive
Returning the vast majority of the spacecraft creates a “step change” in performance. First, it greatly simplifies recovery operations and vehicle refurbishment. Second, it yields an exceptionally high payload-to-mass ratio; the 200-kilogram ENOS vehicle is rated to safely return up to 60 kilograms of customer cargo back to Earth.
The upcoming mission is primarily a technology demonstration, but it is already carrying active customer payloads. The company reports strong initial interest from pharmaceutical corporations interested in microgravity crystallization, semiconductor companies researching advanced materials, and defense contractors looking to test materials under hypersonic conditions during atmospheric reentry.
Overcoming the “Thermos” Challenge
Engineering the spacecraft from a clean sheet in just 15 months with a lean team of roughly 12 employees was an impressive feat made possible by a $7.1 million seed funding round closed in December 2025.
One of the greatest technical hurdles the startup faced was thermal management. To survive the extreme friction of atmospheric reentry, ENOS uses a proprietary thermal protection system material named RHEA, developed with engineering support from NASA. However, the exact insulating qualities that protect the spacecraft during descent create a “thermos effect” during normal space operations, trapping internal heat generated by onboard avionics.
“It was an engineering challenge that was simultaneously very fun and frustrating,”
– Stef Crum, Reditus Space Chief Executive
To dump heat while in orbit, ENOS utilizes external radiators, solar panels, and specialized sensors mounted on an external “backpack.” This service module will be jettisoned and incinerated in the atmosphere just prior to reentry. Crum noted that as the company iterates the spacecraft’s design, future models will minimize this expendable hardware.
“That backpack will continue to grow smaller and, at some point, cease to exist altogether,”
– Stef Crum, Reditus Space Chief Executive
Welcoming SpaceX’s “Starfall
Reditus Space’s looming launch comes during a period of intense activity in the orbital cargo recovery sector. The commercial sector is keeping a close watch on SpaceX, which recently debuted Starfall; a major reusable down mass vehicle on a test flight in June.
While some analysts fear SpaceX’s immense scale could stifle smaller competitors, Crum views the development as a positive validation for the entire industry.
“Starfall’s introduction is going to play a big role in providing an infrastructure on which we all can benefit. Having an entity the size of SpaceX underwrite the tremendous potential of this is a good thing for everyone in the reentry world.”
— Stef Crum, Chief Executive of Reditus Space
While Reditus does not expect to refly much of the physical hardware from the first ENOS prototype, the flight telemetry will serve as the baseline for a series of mission-specific variants optimized for rapid-cadence assembly, paving the way for the company’s next phase of aggressive commercial scaling.