UK astronaut Tim Peake launched to the International Space Station on board a Russian Soyuz rocket on 15 December 2015. It was the beginning of a 6-month stay on board the ISS that would see Tim conduct a spacewalk to repair the space station's power supply, pilot a rover and drive it across a simulate Martian terrain from space, and help dock two spacecraft.
During his Principia mission, Tim Peake took part on over 250 scientific experiments for the European Space Agency.
He also focussed on educational outreach to inspire the next generation of British and European astronauts, engaging over 1.6 million pupils across the Continent.
And, while doing so, he also found time to run the London marathon.
Find out more about Tim Peake's time on the International Space Station in our guide to Tim Peake's best bits, or read our interview in which Tim Peake discusses the future of UK and ESA spaceflight.
Of course, while on board the ISS Tim Peake was also treated to spectacular views of planet Earth, which he photographed for the benefit of those of us back on planet Earth.
Here is a selection of some of Tim's best images captured of our home planet.
