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MOSAiC

Embark on the largest polar expedition in history: in September 2019, the German research icebreaker Polarstern set sail from Tromsø, Norway, to spend a year drifting through the Arctic Ocean - trapped in ice. The goal of the MOSAiC expedition was to take the closest look ever at the Arctic as the epicenter of global warming and to gain fundamental insights that are key to better understand global climate change. Hundreds of researchers from 20 countries were involved in this exceptional endeavour. Following in the footsteps of Fridtjof Nansen's ground-breaking expedition with his wooden sailing ship Fram in 1893-1896, the MOSAiC expedition brought a modern research icebreaker close to the north pole for a full year including for the first time in polar winter. The data gathered will be used by scientists around the globe to take climate research to a completely new level. Led by atmospheric scientist Markus Rex, and co-led by Klaus Dethloff and Matthew Shupe, MOSAiC is spearheaded by Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI).

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MOSAiC

Embark on the largest polar expedition in history: in September 2019, the German research icebreaker Polarstern will set sail from Tromsø, Norway, to spend a year drifting through the Arctic Ocean - trapped in ice.

See expedition
See science

The goal of the MOSAiC expedition is to take the closest look ever at the Arctic as the epicenter of global warming and to gain fundamental insights that are key to a better understanding of global climate change. Hundreds of researchers from 20 countries are involved in this exceptional endeavour. Following in the footsteps of Fridtjof Nansens ground-breaking expedition with his wooden sailing ship Fram in 1893-1896, the MOSAiC expedition will bring a modern research icebreaker close to the north pole for the first time in polar winter. The data gathered will be used by scientists around the globe to take climate and ecosystem research to a completely new level. Led by atmospheric scientist Markus Rex, and co-led by Klaus Dethloff and Matthew Shupe, MOSAiC is spearheaded by Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI).

May 21, 2019

Stories

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January 23, 2021

In pictures: Following the mission to discover how the climate crisis is changing the Arctic

"A journey with the MOSAiC Mission to the North Pole and back again."

December 18, 2020

Scientists Braved the High Arctic to Chase Clouds on History’s Largest Polar Trip

"Photographs by Esther Horvath capture an extreme scientific mission."

December 16, 2020

Two ArcTrainees – one big scientific question

A story about leads from the MOSAiC drift expedition

December 15, 2020

Erste Ergebnisse der MOSAiC-Expedition

Eine unbekannte Eisart und eine überraschende Dynamik in der Arktis

December 15, 2020

Nature’s 10 list: Verena Mohaupt, Polar Patroller

"The Nature’s 10 list explores key developments in science this year and some of the people who played important parts in these milestones."

Read the MOSAiC participants' reports on the expedition
See Polarstern blog
Read more about MOSAiC in international media
See selected articles

Expedition partners