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.
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.
One of the greatest pleasures for an astronaut is to look down on the world below. It is such an important factor in crew morale that NASA installed the Cupola, a seven panel window through which Tim has taken many pictures.
The coastline of Florida, Cuba and the Bahamas, captured by Tim Peake on board the International Space Station.
"Went to close the shutters last night and saw this amazing aurora Australis" – Tim Peake
It can be a little tricky navigating from 400km. Even the world's tallest mountain took Tim a few goes to find but he finally snapped a picture of Mount Everest.
"A sea of green fishing boats lights up the night" – Tim Peake
Sometimes Tim comes across a sight with no idea what he's looking at, such as this strange collection of buildings in San Pedro de Atacama. After a plea on social media, it was revealed they were evaporation ponds used to extract minerals such as lithium and potassium from salar brines.
Active volcano Mr Villarrica seen smoking away.
"Another great pass over Patagonia and a swirling plankton bloom off the coast" – Tim Peake
While the light's of London on a Saturday night provide a beautiful view of home for Tim, they are a stark reminder of mankind's impact on the globe.
Tim spotted this iceberg the size of London floating off the coast of Antarctica.
No, it's not the surface of Mars but dunes in the African desert.
"Been some great night passes over Europe recently…I am waving!" – Tim Peake
Ezzy Pearson is the Features Editor of BBC Sky at Night Magazine. Her first book about the history of robotic planetary landers is out now from The History Press.
The coastline of Florida, Cuba and the Bahamas, captured by Tim Peake on board the International Space Station.
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