Nasa astronauts stuck onboard the ISS have return delayed again

Nasa has had to cancel the launch of its Crew-10 mission, which was going to bring home two astronauts who've been stuck in space for months.

Butch Wilmore and Suni Williams set off on Boeing's Starliner spacecraft in June 2024 after multiple delays.

They were only meant to stay on board the International Space Station (ISS) for around a week, however their craft developed a number of issues - meaning they were unable to head back.

The US Space agency says it hopes to try to launch the rocket from Florida again later today.

What's the latest?

Crew-10, a joint Nasa-SpaceX mission, was due to be launched on Wednesday 12 February on a Falcon 9 rocket from the Kennedy Space Centre in the US state of Florida.

The rocket will fly four new crew members to the ISS - and then make it possible for Williams and Wilmore to return back to Earth in the next few days.

However, the launch of the spacecraft was cancelled less than an hour before lift off due to a problem with one of the clamp arms that holds the rocket in place.

There were worries that it would not have been able to open fully during take off.

Nasa say that engineers were trying to fix the problem and that they hope to try to launch the rocket again on Thursday.

Why are the two astronauts stuck in space?

Sunita Williams and 'Butch' Wilmore have now been stuck in space for the past nine months and have been helping ongoing missions at the ISS including taking part in spacewalks to look after the station.