Atomic-6 Space Armor Reaches Orbit on Portal’s Starburst-1

Atomic-6’s Space Armor® has moved from ground testing to orbit. The composite shielding tiles flew aboard Portal Space Systems’ Starburst-1, which launched on October 21, 2026, on a SpaceX Falcon 9 as part of the Bandwagon-5 dedicated rideshare mission. For Atomic-6, this first deployment puts the material on a spacecraft in operation and gives the company an opportunity to learn how the tiles fit into a real mission.

The challenge Space Armor is designed to address is the impact of micrometeoroids and orbital debris, collectively known as MMOD. Even a small object traveling at orbital speeds can threaten spacecraft hardware. Debris collisions can also create additional fragments, raising concerns about a cascading chain of impacts known as the Kessler Syndrome. Atomic-6’s approach centers on resisting impacts while limiting the secondary fragments a shield could produce.

A shield designed around impact and signal transmission

Space Armor tiles use a proprietary fiber-to-resin manufacturing method. Atomic-6 says the material combines impact resistance with reduced mass and radio-frequency permeability, a useful pairing for spacecraft that need protective structures around communications equipment. The company also describes the tiles as the first composite radome to offer both communications transparency and impact resilience. A radome is an enclosure that protects communications equipment while allowing signals to pass through.

That combination shapes the product’s potential role. Shielding needs to protect spacecraft components, while communications hardware must still perform its job. A protective layer that blocks or hinders signals would create a different engineering problem. Atomic-6’s stated aim is to integrate impact protection with a structure that remains compatible with communications.

In ground-based hypervelocity tests, the composite tiles stopped projectiles traveling faster than 7 kilometers per second, or about 16,000 miles per hour. Atomic-6 reports that the tests produced no harmful secondary debris. In comparative testing, conventional aluminum shielding generated many fragments, including some larger than the projectile. Those results are a test comparison; the Starburst-1 mission will provide experience with the tiles installed on a spacecraft.

“We’ve proven Space Armor® tiles can withstand debris traveling at extraordinary speeds without generating harmful secondary fragments,” said Trevor Smith, CEO of Atomic-6. He described the Starburst-1 flight as a step toward scaling deployment. The distinction between a successful test and a tile flying on a spacecraft matters: flight integration puts the material into the setting it is meant to protect.

Why Starburst-1 is a useful next step

Starburst-1 is Portal Space Systems’ first free-flying spacecraft mission carrying live payloads. The vehicle is designed for rapid maneuvering within an orbital regime, with a planned one-year primary mission demonstrating rendezvous and proximity operations, rapid retasking and significant orbital changes. Those capabilities make spacecraft protection a practical design consideration: the shield needs to fit into a mission architecture that has its own performance demands.

Portal co-founder and CEO Jeff Thornburg said protection from orbital debris matters to the company and its customers. He said Space Armor has the potential to add protection without affecting mission performance, and called the first tile reaching orbit a milestone for the team. His comments point to a key question for spacecraft designers: whether a protective material can be incorporated without getting in the way of the vehicle’s other requirements.

Traditional metallic Whipple shields are the comparison Atomic-6 uses to describe the tiles’ design. The company says Space Armor is lighter, thinner and engineered to resist fragmentation on impact. Less mass and a slimmer profile may matter when protection has to be considered alongside the spacecraft’s overall design. The flight itself does not establish how the tiles perform under every possible impact or mission condition; it marks their first deployment in space.

From one installation to future designs

Portal and Atomic-6 plan to use their Starburst-1 integration experience to validate installation procedures and develop best practices for incorporating the tiles into future spacecraft. That work will help translate the material’s test performance into design and installation knowledge that other missions can consider. The next useful measure is how easily the tiles can be fitted into spacecraft while preserving the communications and maneuvering performance the mission requires.

For now, Space Armor has cleared a meaningful threshold: it has left the test environment and reached orbit on a spacecraft carrying live payloads. Its promise rests on a specific combination of impact resistance, low mass, signal permeability and reduced fragmentation. Starburst-1 gives Atomic-6 and Portal a chance to build practical experience around that combination during the spacecraft’s planned mission.