The inaugural crewed test flight of the Boeing Starliner capsule was delayed moments before liftoff.

Boeing's highly anticipated first crewed test flight of the Starliner space capsule, alongside NASA astronauts, faced another setback as an automatic abort system halted the launch just minutes before liftoff. This delay, amidst a series of last-minute technical challenges, adds to the prolonged wait for the inaugural flight, which has seen numerous postponements.

Although the next potential launch window was scheduled for Sunday, mission officials opted to postpone without setting a new date. The decision aims to allow additional time for assessing the issue that triggered the abort.

Steve Stich, manager of NASA's commercial crew program, acknowledged the disappointment, highlighting the unpredictable nature of spaceflight.

The launch hold on Saturday was attributed to a computer-triggered abort command on the Atlas V rocket's launchpad, while the Starliner capsule itself remained in good condition.

Executives from Boeing and United Launch Alliance expressed hope for a review to enable a launch on Sunday or the following opportunities.

The CST-200 Starliner's maiden crewed voyage to the International Space Station (ISS) is a pivotal milestone for Boeing, aiming to compete in NASA's space missions alongside SpaceX.

Despite preparations for liftoff from NASA's Kennedy Space Center in Florida, a ground system computer's automatic abort command paused the countdown just under four minutes before launch, according to mission officials.

Investigations into potential causes, including hardware or communication issues, are underway. Boeing's previous attempts, including an uncrewed flight in 2019 and a successful one in 2022, paved the way for this crewed test mission.

The crew, consisting of NASA astronauts Butch Wilmore and Suni Williams, were safely escorted from the capsule after the launch was scrubbed, maintaining quarantine until the next launch attempt.

Space launch delays are not uncommon, particularly with new spacecraft and human-carrying missions. Boeing's success with Starliner is crucial amid its challenges in the commercial airplane sector, while SpaceX has become NASA's primary means of crew transport to the ISS.

NASA views Starliner as a significant addition to its space transportation capabilities, envisioning its role in missions to the moon and Mars under the Artemis program.

Once launched, Starliner is expected to dock with the ISS after about 24 hours, with plans for the crew to return to Earth via parachute and airbag-assisted landing in the US Desert Southwest.