Boeing's Starliner with NASA Astronauts Docks at International Space Station

A detailed view of the Boeing Starliner crew capsule in low Earth orbit, with the planet's atmospheric glow and city lights visible far below.

October 10, 2025

Boeing's Starliner's first crewed mission successfully docks, certifying a vital second US spacecraft for NASA.

In a landmark achievement for human spaceflight, Boeing's CST-100 Starliner spacecraft has successfully docked with the International Space Station (ISS) on its first crewed mission. NASA astronauts Butch Wilmore and Suni Williams arrived safely aboard the station, marking the culmination of years of development and a critical step in certifying a second American vehicle for transporting crews to low-Earth orbit under NASA's Commercial Crew Program.

A New Era for NASA's Commercial Crew Program

The successful docking of Starliner represents a pivotal success for NASA’s strategy of partnering with private industry to foster independent, reliable, and cost-effective access to space. By adding Boeing's Starliner to its certified fleet alongside SpaceX's Crew Dragon, NASA enhances its operational redundancy, ensuring continuous US presence on the ISS and freeing agency resources to focus on ambitious deep-space exploration goals, including the Artemis missions to the Moon and beyond.

The Crew Flight Test (CFT) Journey

The Crew Flight Test (CFT) mission began with a flawless launch atop a United Launch Alliance Atlas V rocket from Cape Canaveral Space Force Station. During its autonomous journey to the ISS, the spacecraft and its crew successfully navigated a series of system checkouts. The mission teams adeptly managed minor helium leaks detected in the spacecraft's propulsion system, demonstrating the vehicle's resilience and the crew's expertise before proceeding with the final approach and docking to the Harmony module's forward-facing port.

  1. Successful Launch: Lift-off aboard a ULA Atlas V rocket, marking the first crewed launch for this historic booster.
  2. In-Orbit Checkouts: Astronauts performed manual piloting tests and verified vehicle systems in the space environment.
  3. Automated Docking: Starliner autonomously rendezvoused and docked with the ISS, a critical capability for future missions.

Critical Redundancy and Scientific Access

The certification of a second crew transportation system is a strategic imperative for NASA. It mitigates the risks associated with relying on a single provider, guaranteeing that the United States has uninterrupted access to the orbiting laboratory. This capability is vital for conducting long-duration scientific research in microgravity, which yields discoveries that benefit humanity on Earth and pave the way for future space exploration.

Starliner marks a new chapter of American exploration. It's a testament to American ingenuity and perseverance. Having two independent crew transportation systems gives us assured access to the ISS, which is critical for our continued research and operations in low-Earth orbit.

- Bill Nelson, NASA Administrator

What's Next for Starliner?

Wilmore and Williams will spend approximately one week on the ISS, conducting further tests on the Starliner and its subsystems. After undocking, the spacecraft will perform its deorbit burn and land in the southwestern United States. Following a thorough post-flight data review, NASA and Boeing will proceed with the final certification, preparing Starliner for its first operational crew-rotation mission.

The arrival of Starliner at the ISS is more than just a successful test flight; it's a powerful demonstration of a collaborative vision for space exploration. This achievement strengthens the commercial space economy and solidifies the foundation for a robust, sustainable human presence in low-Earth orbit and beyond.

Boeing's Starliner with NASA Astronauts Docks at International Space Station - FAQs

The CST-100 Starliner is a reusable crew capsule designed and manufactured by Boeing as part of NASA's Commercial Crew Program. Its purpose is to transport astronauts to and from the International Space Station (ISS) and other low-Earth orbit destinations.

This Crew Flight Test is the final step to certify Starliner for regular crewed missions. It provides NASA with a second independent and commercially-operated US vehicle, alongside SpaceX's Crew Dragon, ensuring redundant and reliable access to the ISS.

The crew consists of two veteran NASA astronauts: Barry "Butch" Wilmore, serving as the mission commander, and Sunita "Suni" Williams, serving as the pilot. Both are former U.S. Navy test pilots with extensive spaceflight experience.

After the crew returns to Earth, NASA and Boeing will analyze all mission data. Upon successful review and final certification, Starliner will begin operational crew-rotation flights, with the first mission, Starliner-1, scheduled to follow.