British astronaut Tim Peake completed his first spacewalk at 17:31 GMT on Friday 15 January after nearly five hours in space
Intended to be longer than six hours, the walk was cut short after his US colleague Tim Kopra reported water in his helmet
The duo successfully completed their main job, replacing a faulty unit that regulates power from the station's solar panels
Other scheduled work, including routing many metres of cables for new docking ports, was left for future spacewalks
Major Tim is currently on a six-month mission to the space station for the European Space Agency
That concludes our live coverage of today's spacewalk - the first for British astronaut Tim Peake.
Thank you for reading, watching and contributing!
Read more on the BBC News website:
Tim Peake spacewalk ends early
Tim Peake's parents 'thrilled' at spacewalk
And tune in to BBC Two at 21:00 GMT tonight to see Stargazing Live: The Spacewalk, external
This is the moment today's spacewalk was cut short, due to a water bubble in Tim Kopra's helmet.
It was just before 17:00 GMT - four hours and 10 minutes into the space walk.
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Mission Control
Mission controllers are gathering evidence on what might have caused the bubble of water inside Tim Kopra's helmet.
Station commander Scott Kelly is helping the astronauts inside the equipment room of the ISS.
Tim Kopra's suit and helmet will be carefully analysed.
The temperature of the water is one clue - cold water suggests it came from some sort of leak inside the space suit, rather than sweat or condensation.
Watch highlights of the two Tims' first task, repairing a solar power unit.
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Lindsey Ann comments on our Facebook page, external:
My class came back in at lunchtime to continue watching it, so that they didn't miss the moment history was made! A once in a lifetime awe-inspiring magical moment!
And this from Brian Brian, earlier today:
It's amazing how they're going over 17,000mph and it just looks like they're just drifting.
Image source, NASAStation commander Scott Kelly removes Tim Peake's helmet...
Image source, NASA...and then Tim Kopra (left) and Tim Peake (far right) exchange a few friendly words after returning from today's spacewalk
Email: haveyoursay@bbc.co.uk
Amazing to watch with my two budding scientists Emily and Issy aged 12 and 10.
Sarah, Stratford Upon Avon
Both Tim Peake and Tim Kopra are inside the space station, in the equipment room, with their helmets removed.
"All's well that ends well," said mission commentator Rob Navias.
He said it was a "safe and successful end" to the spacewalk, if a bit early.
Meanwhile, Italian astronaut Luca Parmitano - who also suffered a water leak in his helmet on a spacewalk in 2013 - has tweeted his congratulations.
The crew managed to withdraw 15 ml of water from Tim Kopra's helmet with a syringe.
The space station crew is now helping him out of his suit.
Image source, NASAFellow crew members help Tim Kopra out of his helmet
Image source, NASASlightly damp but safe and sound: Tim Kopra back in the space station
Email: haveyoursay@bbc.co.uk
Congratulations to Tim Peake, his ambition achieved and job done!! This man is an inspiration to all young people and older. He is a champion of mine, he fits what I call 'old school'.
Ellis Hart
Email: haveyoursay@bbc.co.uk
Ground control to Major Tim – had a brilliant time watching the space walk LIVE on the BBC – amazing and thrilling.
Karen Bedford
The inner door of the airlock is now open.
Back inside the space station, Tim Kopra is being assisted out of his suit.
There is no live TV coverage at the moment, but we can hear instructions being issued - including a request to collect some of the troublesome water with a syringe for later analysis.
Email: haveyoursay@bbc.co.uk
Absolutely superb coverage - awesome that we can watch this down here on earth. I feel so privileged - and a bit emotional!
Heather Thomas
Both Tim Kopra and Tim Peake voiced their thanks to the mission controllers as they waited for the pressure in the airlock to equalise.
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Although not all the jobs on the list were completed, the two Tims did manage to restore full power to the ISS when they replaced the "sequential shunt unit" just before 15:00 GMT.
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Amazing! My 10 yr old son and I are making pizza dough whilst watching the space walk AND listening to Hunky Dory by David Bowie too.
Jackie Barker & Sam Napier
The airlock is being repressurised now, which denotes the official end of the spacewalk, according to Nasa - after four hours and 43 minutes.
The two Tims, safely inside the airlock, are now running through checks and closing the hatch behind them.
Their colleagues on the space station are waiting on the other side of the inner door, to help them out of their space suits.
Tim Peake and Tim Kopra are now both inside the airlock. This image shows the thermal cover closed behind them; the hatch itself still needs to be shut.
Image source, NasaThe European Space Agency says Tim Peake is entering the airlock to join his colleague Tim Kopra.
Helen Briggs
BBC News
Space controllers are taking no chances after an incident in 2013 when Italian astronaut Luca Parmitano discovered his helmet was starting to fill with water during a spacewalk.
His ventilation system had sprung a leak. Liquid doesn't flow under microgravity, so the water sat in his helmet, forcing him to cut short his spacewalk.
"I started going back to the airlock and the water kept trickling," Parmitano has said.
"It completely covered my eyes and my nose. It was really hard to see. I couldn't hear anything. It was really hard to communicate.
"I couldn't breathe through my nose - I felt isolated and when I tried to tell ground that I was having trouble finding my way, they couldn't hear me, and I couldn't hear them either.
"Instead of focussing on the problem - which was I may drown with the next gulp of air - I started thinking about solutions."
Parmitano gradually felt his way back to the airlock and made it safely back inside.