Two Nasa astronauts who’ve been caught in house for over two months will return to Earth in February 2025 with SpaceX.

Nasa stated the Boeing Starliner spacecraft the astronauts Sunita Williams and Barry Wilmore had travelled to Worldwide House Station (ISS) on would return to Earth “un-crewed”.

The pair took off on what was deliberate to be an eight-day mission on 5 June however will now spend round eight months in orbit.

The Starliner skilled issues on its approach to the ISS, together with leaks of helium, which pushes gasoline into the propulsion system. A number of thrusters additionally didn’t work correctly.

Boeing and SpaceX had been each awarded billion-dollar contracts by Nasa to offer business house flights for its astronauts. Boeing’s was price $4.2bn (£3.18bn) whereas SpaceX, which was based by billionaire Elon Musk, obtained $2.6bn.

SpaceX has to date despatched 9 crewed flights to house for Nasa, in addition to some business missions, however this was Boeing’s first try at a crewed mission.

Engineers at Boeing and Nasa have spent months making an attempt to grasp the technical points with the Starliner craft.

They’ve been finishing up exams and gathering information, each in house and again on the Earth. Their hope was to pin down the basis of the issues and discover a approach to return the astronauts dwelling safely on Starliner.

Talking at a press convention on Saturday, Nasa Administrator Invoice Nelson stated Boeing has been working intently with Nasa to grasp what enhancements must be made to the spacecraft.

“House flight is a danger, even at its most secure and even at its most routine, and a check flight, by nature, is neither protected nor routine,” he stated.

“Our core worth is security and it’s our north star.”

The choice has been made to increase the pair’s keep on the ISS till February 2025 to allow them to return on a SpaceX Crew Dragon spacecraft.

The additional time permits SpaceX to launch its subsequent car, with lift-off scheduled for the tip of September.

It was presupposed to have 4 astronauts on board, however will as an alternative journey to the house station with two. This leaves room for Mr Wilmore and Ms Williams to hitch them within the car to return to Earth on the finish of its deliberate mission subsequent February.

Nasa has stated each astronauts had beforehand accomplished two long-duration stays in house and understood the dangers of the check flight, together with being aboard the station longer than deliberate.

The organisation stated Mr Wilmore, 61, and Ms Williams, 58, each “totally” supported the plans for his or her return and would spend the following few months finishing up scientific work, house upkeep and probably doing a little “spacewalks”.

Boeing’s Starliner had already been delayed for a number of years due to setbacks within the spacecraft’s growth. Earlier un-crewed flights additionally suffered technical issues.

In an announcement, Boeing stated it continued to focus “on the security of the crew and spacecraft”.

“We’re executing the mission as decided by Nasa, and we’re making ready for a protected and profitable un-crewed return,” it added.