NASA and Boeing delayed their next Starliner mission in April 2026

A Boeing Starliner spacecraft in space for testing (Image: NASA)

NASA and Boeing have delayed the next Starliner mission. The spacecraft will fly without astronauts due to unresolved technical issues. This cargo-only flight allows engineers to complete critical safety upgrades.

Who Will Fly Next?

NASA and Boeing announced the next Starliner flight will be uncrewed. The mission will deliver cargo to the International Space Station. Technical issues with the spacecraft’s propulsion system remain unresolved. Safety remains the top priority before any crewed mission resumes.

When Will It Launch?

The uncrewed mission is planned for no earlier than April 2026. NASA and Boeing are using the delay to complete rigorous testing. Future crewed flights will follow only after certification is fully approved.

What Problems Need Fixing?

Starliner’s thruster and thermal systems need additional upgrades. Engineers are adding heat‑dissipation hardware around critical thruster components. These improvements aim to prevent overheating and ensure mission reliability.

How Many Flights Will Carry Astronauts?

NASA reduced planned Starliner crewed missions from six to four. This reflects the need to balance safety and schedule constraints. Each flight will now be carefully evaluated before astronauts board.

What Are NASA's Future Plans?

The delay underscores NASA’s commitment to crew safety over schedules. Starliner remains a vital part of the Commercial Crew Program. Boeing will continue testing thrusters and thermal systems before astronauts fly.

Future crewed missions will resume only after full certification is completed. NASA plans to align Starliner flights with the ISS’s remaining operational period. These measures ensure safe, reliable access to space for upcoming crews.