Tim Peake's historic first walk in space was ended early after a water bubble was detected in the helmet of his colleague Tim Kopra.
The British astronaut helped complete the crew's primary task of repairing a broken voltage regulator and headed back to the airlock on the International Space Station (ISS).
Both astronauts were safe, according to the ISS.
Major Peake, 43, became the first Briton to ever complete a Extra-Vehicular Activity (EVA) - or spacewalk - and was undertaking a maintenance operation with the American Colonel Kopra.
After the operation was terminated by the lead Flight Director, Major Peake and Colonel Kopra were told to spend some time cleaning up their tools before heading to safety.