Orbital Sciences and the early ISS resupply

When you think of American rockets launching to the International Space Station, your mind probably jumps to Cape Canaveral in Florida or the Kennedy Space Center. That makes sense. Those are the big stages, the historic pads where Apollo and the Shuttle flew. But for a critical stretch in the early 2010s, the real work of keeping the ISS alive happened on a remote barrier island off the coast of Virginia. Wallops Island. And the company that made it happen was Orbital Sciences Corporation.

Before SpaceX was landing boosters on droneships and making regular cargo runs look routine, NASA needed a backup plan. The Space Shuttle was retired in 2011, and the only American option for getting supplies to the station was Russia’s Progress spacecraft, which launched from Kazakhstan. That was a national security and logistics headache. So NASA launched the Commercial Orbital Transportation Services program, or COTS, to fund private companies to build cargo vehicles. SpaceX got the headlines. Orbital Sciences got the job.

Orbital Sciences was not a flashy startup. It was a defense contractor that built small rockets and satellite buses. But they had a plan. They developed the Antares rocket, a two-stage medium lifter, and paired it with the Cygnus spacecraft, a pressurized cargo capsule. The key detail for our purposes is where they chose to launch from. They did not go to Cape Canaveral. They went to Wallops.

Wallops Flight Facility, located on Virginia’s Eastern Shore, has been a NASA site since the 1940s. But for most of its history, it was used for suborbital sounding rockets and small scientific payloads. It was not a heavy-lift spaceport. To make Antares work, NASA and the Virginia Commercial Space Flight Authority spent roughly $200 million upgrading Pad 0A, building a new launch control center, and adding a horizontal integration facility. The result was the Mid-Atlantic Regional Spaceport, or MARS, operated by Virginia Space.

Why Wallops? Geography. The site sits at 37.8 degrees north latitude, which is actually farther north than Cape Canaveral. That is suboptimal for launching big payloads to low Earth orbit because you lose some efficiency from the Earth’s rotation. But for ISS resupply, the orbit of the station is inclined at 51.6 degrees, which is well within reach from Wallops. The real advantage is that launching due east from Wallops sends rockets out over the Atlantic Ocean, away from populated areas. And for a contractor like Orbital Sciences, having a dedicated pad that was not competing with Air Force or NASA heavy-lift missions meant better schedule flexibility.

The first Antares test flight happened in April 2013. It was a success. The first operational Cygnus mission, Orb-D1, launched that September. That was followed by Orb-1 in January 2014. Everything looked solid. Then came October 28, 2014.

The Antares rocket on the Orb-3 mission lifted off from Wallops at 6:22 PM. About six seconds after liftoff, an explosion ripped through the first stage. The vehicle fell back onto the pad and detonated. The fireball was visible for miles. The pad was heavily damaged, and the mission was lost. The cause was a failure in the first stage turbopump, which had been built with a Soviet-era design from the 1960s. Orbital Sciences had used an AJ-26 engine, a refurbished NK-33 originally built for the Soviet N-1 moon rocket. It was a cost-saving decision that backfired spectacularly.

The explosion was a major setback, but it did not kill the program. Orbital Sciences redesigned the Antares first stage, switching to RD-181 engines built in Russia. They rebuilt Pad 0A at Wallops. And they returned to flight in October 2016. The lesson was not that Wallops was a bad site. It was that the business of space is unforgiving, and flying from a smaller, remote pad had real consequences. There were no redundant pads at Wallops. When it blew up, everything stopped.

Still, Wallops proved its value. Between 2013 and 2019, Orbital Sciences and its successor Northrop Grumman launched ten successful Cygnus missions from the site. The cargo delivered kept the ISS stocked with food, experiments, spare parts, and even fresh fruit. Without Wallops, the station would have been more dependent on Russian and Japanese vehicles. It would have been a weaker position for the United States.

Today, the Antares rocket is being retired. Northrop Grumman is moving to a new rocket called Antares 330, which will use a first stage built in the United States. They are also planning to launch Cygnus on SpaceX’s Falcon 9 from Cape Canaveral starting in 2025. That means the Wallops pad may soon see less Cygnus traffic. But the site is not dying. It is now hosting Rocket Lab’s Electron launches and future missions for other small launch providers. The infrastructure is too valuable to waste.

For the casual space fan, Wallops is a reminder that the space program is not just about the big names. It is about obscure launch sites, tough engineering calls, and contractors who fly from places most people have never heard of. The next time you see a Cygnus capsule docking with the ISS, remember it got there because a company chose a windblown island in Virginia over the beaches of Florida. That choice kept the station alive during a vulnerable decade. That is the kind of gritty, unglamorous work that makes spaceflight possible.