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
After the decision to end the spacewalk early, mission controllers are watching closely in Houston as the crew heads back to the airlock.
Nasa says the astronauts are "not in any danger whatsoever".
Image source, NASA
Image source, NASAEmail: haveyoursay@bbc.co.uk
Incredible. Enjoying an end of week pint in my 'local' watching Tim Peake's spacewalk on my smartphone, thinking how we often take technology for granted. It all seems so far away from the Neil Armstrong days, yet space hasn't changed.
Tony Lloyd-Weston, Alsager
Email: haveyoursay@bbc.co.uk
Another contribution to the soundtrack discussion...
It has to be David Bowie but perhaps not the obvious choices of Starman, Life on Mars or Space Oddity. My choice would be Heroes as Tim Peake is a real hero, or Let's Dance because of the beautiful choreography of weightlessness.
Rose Meech
The two astronauts were more than four hours into the planned six-and-a-half hour spacewalk when the problem happened.
Nasa says Tim Kopra reported a small water bubble in his helmet and with the essential work completed the decision was made to terminate.
Nasa says the crew are not in any danger but are being told to return to the station as a precaution.
Before the decision to terminate the spacewalk, Tim Kopra did manage to install a component known as the NPV - non propulsive vent.
This was the second major task on the list.
The decision to end the spacewalk early was made by ISS spacewalk flight director Royce Renfrew.
Nasa says it is not an emergency.
Tim Kopra is moving back towards the airlock, followed by Tim Peake.
The space walk is being terminated after Tim Kopra reported a small amount of water in his helmet.
Email: haveyoursay@bbc.co.uk
A response to Gary Burrows' question, below...
The reason no stars are ever seen in space walks is due to how dim they are compared to the other objects in view of the camera. If the camera panned around to show nothing but the blackness of space, the camera's exposure could be easily adjusted to see the stars. As it is, the Earth, the ISS, and the astronauts are all much much brighter than the stars and the camera's exposure is adjusted accordingly. If you increased the exposure so that the stars could be seen, the view on your TV screen would be so bright you wouldn't be able to make out anything at all - you'd be blinded!
John Walsh
Reid Wiseman, an astronaut who has previously completed a very similar spacewalk, is guiding the two Tims from mission control today, at Johnson Space Center in Houston.
He decided he should be called Tim too...
And he is not alone!
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Email: haveyoursay@bbc.co.uk
In ALL of the space walk photos there are no stars to be seen. Why is this?
Gary Burrows
Email: haveyoursay@bbc.co.uk
Ground control to Major…..Tim (with apologies to the late David Bowie); brilliant to watch and….out of this earth!
Trevor Hobday, Clitheroe, Lancashire
The cables Tim Peake is putting into place will support a unit called the International Docking Adaptor.
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Image source, NASAThe view from Tim Peake's helmet camera
Email: haveyoursay@bbc.co.uk
I'm watching this and listening to Hunky Dory by David Bowie - the perfect soundtrack for Tim's spacewalk.
Tom Hector, London
The two Tims will now move apart and work on different sections of the space station.
Before they moved away from the airlock, astronaut Reid Wiseman at mission control asked how they were feeling.
"I'm feeling good," said Tim Kopra, who is assigned the identifier "EV1".
"EV2's doing good," added Tim Peake.
Image source, NASATim Kopra (left, with red stripes on the legs of his suit) and Tim Peake (upper right), near the airlock
Carol Eyden on our Facebook page, external:
Quote MessageI haven't taken my eyes off [the spacewalk] since it started. Even when I was making a bread and butter pudding my laptop was on the draining board... The NASA footage is great, thank you!
"I've placed the failed SSU unit back in the airlock," said Tim Peake.
Image source, NASAFaulty sequential shunt unit, safely stowed
"Everything is looking great," said mission control, as Tim Kopra continued to work and Tim Peake was asked to "hang out" and wait for further instructions.
Image source, NasaMajor Tim hangs out near the airlock
The two Tims are stowing some equipment back in the airlock, before they continue with today's jobs.
An external camera on the space station captured this shot as Tim Peake made the careful journey back towards the airlock.
Image source, NasaMajor Tim spacewalking with a big bag of tools
The astronauts are continuing with their tasks, and their prompt work with the Sequential Shunt Unit has put them ahead of the timetable.
"The SSU is performing as expected, with the Sun up," the two Tims were told by mission control.
Image source, NASAMeanwhile, the brief discussion about a carbon dioxide (CO2) reading from Tim Kopra's suit was "no cause for alarm" according to the European Space Agency:
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The replacement sequential shunt unit is installed and is being checked out back on Earth.
Libby Jackson from the UK Space Agency tweets:
There is plenty more on the to-do list for today's spacewalk, however...
The new box has been secured into place, we hear from the Nasa commentary.
A discussion is now underway about a possibly faulty sensor on Tim Kopra's space suit.