This SpaceX veteran says the next big thing in space is satellites that return to Earth
Source: TechCrunch
Background
The reusable rocket has transformed the space industry in the last decade, and a new startup led by a SpaceX veteran wants to do the same for satellites.
Brian Taylor, who helped build satellites for networks like SpaceX’s Starlink and Amazon’s Leo, founded Lux Aeterna in December 2024 to develop satellite structures with a built‑in heat shield that will allow them to return to Earth with their payloads intact. The company emerged from stealth last year, as reported by TechCrunch1.
Funding
Lux Aeterna announced a $10 million seed round led by Konvoy, with participation from Decisive Point, Cubit Capital, Wave Function, Space Capital, Dynamo Ventures, and Channel 39. The company declined to disclose its valuation. The capital will support the design and construction of Lux Aeterna’s Delphi spacecraft, which has a confirmed spot on a SpaceX launch expected in the first quarter of 2027.
Mission and Technology
The planned mission will demonstrate Lux’s technology by offering customers the ability to test hosted payloads and materials that will then be returned to Earth at Australia’s Koonibba Test Range through a partnership with aerospace company Southern Launch.
Returning anything from space requires surviving re‑entry at extremely high speeds, which generates intense heat. Spacecraft that survive must be covered in heat‑shield materials, adding extra weight and making launch more expensive. Consequently, most spacecraft are not designed for a return journey.
Historically, re‑entry has been limited to vehicles that carry humans, such as the Space Shuttle (which suffered a loss due to re‑entry stresses) or SpaceX’s Dragon spacecraft. SpaceX’s repeated attempts to land its massive Starship rocket have highlighted the challenges involved.
Startups like Varda Space and Inversion are tackling the same problem on a smaller scale. Varda has flown five missions, returning capsules on four, while Inversion hopes to launch its Arc vehicle later this year.
Industry Context
A reliable technology for returning payloads to Earth is essential for several futuristic business models:
- Testing new materials in orbit
- Manufacturing pharmaceuticals or high‑end electronics in microgravity
- Harvesting resources such as metals from asteroids
The U.S. military has also shown interest in orbital logistics support and testing components for hypersonic weapons.
Lux’s broader vision is to make communications and Earth‑observation satellites reusable. Currently, satellites have a useful life of five to ten years before they are destroyed in the atmosphere (lacking heat shields) or moved to a graveyard orbit.
“If you have a payload component, whether it’s compute or a hyperspectral camera, and you want to update that technology every year, instead of having to build new satellites and keep those old ones up in space, you can bring them down and go back,” Taylor told TechCrunch.
Economic and Regulatory Challenges
The economic viability will depend on whether the value generated by upgraded payloads exceeds the added costs of building, launching, returning, and refurbishing reusable satellites.
Regulatory hurdles also exist. Lux is targeting Australia for re‑entry because obtaining a U.S. re‑entry license is currently difficult. Varda’s first commercial spacecraft landed on U.S. soil in 2024 but faced several months of delays while convincing the FAA that its capsule would not threaten people or property2. Subsequent Varda missions have returned to Australia.
Taylor believes regulatory approvals will not be a bottleneck for the next three to four years, expecting the FAA to evolve alongside the nascent re‑entry industry and allow a higher return cadence.
“The folks that are backing us really believe that now is the time to put that major, major paradigm shift in orbital operations… Not only re‑entry and bringing things back, but about bringing reusability to much larger sections of the satellite industry,” Taylor said.