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Portal Space Systems’ Starburst-1 spacecraft is shown in orbit aboard a SpaceX Falcon 9 rocket prior to deployment. (SpaceX Webcast Image)
Portal Space Systems has reached Earth orbit for the second time this year, successfully launching the startup’s first free-flying spacecraft, Starburst-1, aboard a SpaceX Falcon 9 rocket.
Portal’s Starburst-1 lifted off Tuesday at 7:04 a.m. EDT from Space Launch Complex 40 at Cape Canaveral Space Force Station. The spacecraft separated from SpaceX’s Falcon 9 on the Bandwagon-5 rideshare mission about 57 minutes later.
Within hours of deployment, the Bothell, Wash.-based company reported that the desk-sized craft had established ground communications, stabilized itself, and successfully deployed its solar array to become power positive.
It marks the second significant milestone for Portal this year, following the March debut of Mini-Nova — a tissue-box-sized technology demonstration payload that flew on a SpaceX Falcon 9 mission to test critical control and power systems in orbit.
SpaceX’s Bandwagon-5 mission lifts off from Cape Canaveral, Fla., carrying Portal Space Systems’ Starburst-1 satellite. (SpaceX Webcast Image)
Portal self-funded Starburst-1 to accelerate its flight timeline and prove out hardware for prospective customers, achieving orbit in less than a year since introducing the Starburst vehicle concept in November 2025.
Co-founder and CEO Jeff Thornburg emphasized that urgency is baked into the startup’s operational philosophy, noting that customers require spacecraft that can shift rapidly in orbit.
“Speed can’t just be part of the product. It has to be part of the company building it,” Thornburg said in a statement. “Our customers need spacecraft that move quickly in orbit and a company that moves with the same urgency to get them there. We put our own capital behind Starburst-1 because proving hardware in flight is how we earn their confidence.”
Thornburg shared video of the launch and deployment of Starburst-1 on LinkedIn.
Starburst is an ESPA-class spacecraft designed to execute rapid maneuvers within a specific orbital regime, giving commercial and defense operators greater operational flexibility. The vehicle shares the majority of its core systems and manufacturing processes with Supernova, Portal’s larger upcoming spacecraft built for rapid travel across different orbital regimes, with flight data from Starburst-1 directly informing both platforms.
Portal Space Systems co-founders Jeff Thornburg, left, the startup’s CEO, and Prashaanth Ravindran, VP of engineering, call fellow co-founder Ian Vorbach from Kennedy Space Center immediately after the launch of Starburst-1. (Portal Space Systems Photo)
Starburst-1 is carrying experimental technologies from three partner companies to test in orbit:
Zenno Astronautics’ Supertorquer: A superconducting magnetic attitude-control system designed to orient the spacecraft using Earth’s magnetic field — conserving onboard propellant — while testing whether its magnetic field can shield sensitive electronics from radiation.
TRL11’s Fovea M1: A specialized camera system providing live video of Starburst-1 and its surroundings, including visual confirmation of the solar array deployment.
Atomic-6’s Space Armor: Protective tiles engineered to shield the spacecraft from high-speed orbital debris without creating additional secondary debris.
Since emerging from stealth in 2024, Portal has raised $75 million in funding — including a $50 million round in April — from investors including Geodesic Capital, Mach33, Booz Allen Ventures, AlleyCorp, and FUSE, alongside receiving critical SBIR and STRATFI support from the U.S. military.
GeekWire got an inside look at Portal’s 8,000-square-foot Bothell development and testing lab earlier this year. To prepare for future demand — including a dedicated 2028 Falcon 9 mission known as Motus Via Sol that will carry multiple Starburst spacecraft and the first Supernova — Portal has been expanding its footprint.
The company — No. 107 on the GeekWire 200 index of top-ranked Pacific Northwest startups — is in the process of transitioning its satellite manufacturing operations into a new 65,000-square-foot facility in Bothell, which is slated to be fully operational by next year and capable of producing up to 16 Starburst and 12 Supernova spacecraft annually.
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The first viable powered aircraft predated the first proper runway by two decades. While it’s entirely possible to launch some planes from austere dirt or grass strips, the aviation world eventually realized that aircraft would be better off launching from a flat, paved surface.
Over the years, paving technology has gradually improved in the aviation world as it has for roads and highways. Now, there’s a project being built in Charlotte with new digital features that hopes to push the state of the art of runways even further.
Twinsies
Charlotte Douglas International Airport (CLT) serves the city of Charlotte, North Carolina. It’s by no means the most famous airport in the United States; it wouldn’t make the top 10 in notoriety despite being the 11th busiest in the country).. Still, it serves as a major hub for American Airlines, and has three operating runways that are interesting for the fact that they are all laid out parallel to each other.
Much of the work will involve embedding strain gauges in the runway to monitor how loads affect the structure when the runway is in use. Credit: CLT press release
The airport’s major grand project of late has been the installation of its fourth parallel runway, with the official ground breaking taking place in June 2023. The hope is that the new 10,000 foot runway will add significant capacity for both arrivals and departures to keep the airport competitive while also adding resilience in difficult operational conditions. As the new runway is built, the existing runways have been renamed to 19R/1L, 19L/1R, and 18/36 respectively. The fourth runway will wear the designation 19C/1C.
The new Fourth Parallel Runway, as it is otherwise currently known, will be unique for its “smart runway” features. Unlike a smart fridge, smart oven, or smart bulb, it doesn’t just mean that the runway will have a pointless and annoying WiFi connection and dodgy smartphone app. Instead, it’s all about sensing and telemetry, which is intended to create a better understanding of the runway and its performance and state over time.
The strain gauges, seen here assembled on rebar, are to be embedded in the concrete itself, where they will provide the most useful readings. However, this does mean that the sensors will not be practical to maintain or repair over time. Their expected lifetime is approximately ten years. Credit: CLT press release
During construction, over 2,000 sensors will be installed in the 18-inch deep concrete being poured to lay out the Fourth Parallel Runway. The sensors in question will be used to measure everything from engineering basics like stress and strain, as well as tracking factors like moisture ingress, settlement, friction, and the presence of snow and ice.
The sensors are no different from those that have been deployed on highway bridges and interstates previously for similar purposes. However, this will mark the first time that a US runway has been similarly instrumented in such a way, such that the airport can create a “digital twin” of the runway.
Jointmeters will also be installed in the runway to measure the behaviour of expansion joints in the runway. Credit: CLT press release
This is effectively a digital model that is fed by the sensor data and helps authorities determine the condition of the runway, both from an engineering and operational standpoint. Moisture, snow, and ice sensors can be used to guide the employment of deicing resources and what measures to take on the ground, while monitoring the stress and strain on the runway will guide maintenance decisions over the runway’s lifetime. The latter in particular will provide a very clear idea of how aircraft operations are impacting the very structure of the runway itself. The hope is that this data will be a boon for implementing predictive maintenance. In a busy airport, preventing a time-consuming runway shutdown with a little well-placed maintenance could save huge amounts of money by preventing or limiting the number of flight cancellations, to say nothing of the reduced frustrations for travellers passing through.
Of course, the problem with embedding sensors in 18 inches of concrete is that it’s not particularly easy to get at them for service or replacement purposes. The runway’s sensor system is slated for an expected life of 10 years, during which time data will be collected to better understand the runway and its performance and robustness over time. The hope is that by learning exactly what’s going on in the concrete itself, engineering lessons could be learned on how better to build runways in future. It could lead to new guidelines on concrete mixes, thickness, density, or other factors that influence how long the runway holds up under heavy use by commercial airlines. Despite the limited sensor lifetime, though, the runway itself is expected to last much longer, with the pavement itself slated for 30 to 40 years of use.
Embedding sensors into runways won’t always be a seen as a necessity. It’s perfectly possible to build a runway that doesn’t have telemetry, and just exists as a big old slab of concrete that takes a pounding from air traffic on the regular. However, where a greater understanding of the pavement is desirable, instrumentation can help. Time will tell if the lessons learned from the new CLT runway prove useful enough to justify the investment—but it’s easy to imagine that it would only take a couple of runway shutdowns to be avoided to pay for the $6.5 million project cost. Time will tell!