Boeing has lost more than $2 billion and counting on its Starliner spacecraft after a rough year in which the capsule’s first astronaut flight turned into a headache for NASA.

According to a new quarterly filing submitted to the Securities and Exchange Commission (SEC) by Boeing, the aerospace titan’s Starliner spaceflight program has now topped $2 billion in losses.

With two astronauts still stranded on the International Space Station, no one would categorize the Boeing Starliner’s 2024 crewed test flight as a success. Boeing has now lost $2 billion on Starliner after the aerospace giant announced a $523 million loss across last year on the spacecraft program on Monday.

"Risk remains that we may record additional losses in future periods," Boeing wrote in the filing. In 2014, NASA picked Boeing and SpaceX to develop and certify two commercial crew transporter vehicles.