Alexander Gerst
Science & Exploration

Meet Alexander Gerst

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ESA / Science & Exploration / Human and Robotic Exploration / Blue dot

ESA astronaut Alexander Gerst was born on 3 May 1976 in Künzelsau, part of Baden-Württemberg, Germany. A scientist and explorer at heart, Alexander graduated in 1995 from the nearby Technical High School of Öhringen. During his school years, he volunteered as a firefighter and lifeguard.

Alexander’s interest in the environment around him and exploration of the unknown led him to choose an academic career in geophysics and volcanology. This relatively new scientific discipline offered the potential to explore extreme places, while the research has immediate benefits for people living near volcanoes.

Alexander at the summit of Mount Erebus, Antarctica
Alexander at the summit of Mount Erebus, Antarctica

Multiple field-trips to study volcanoes up close in Antarctica, Guatemala, Italy, Ethiopia and Indonesia followed for Alexander as he continued his studies at universities in Karlsruhe, Germany, and Wellington, New Zealand. Alexander’s Master’s degree and subsequent doctorate saw him developing new instruments to study and help predict volcanic eruptions.

Alexander never considered his chances of becoming an astronaut were very high – over 8000 people applied for ESA’s astronaut selection in 2008 – but he knew that he would try at least once, to give that dream a chance.

Alexander studying Mount Etna eruption
Alexander studying Mount Etna eruption

In one of life’s coincidences, Alexander found himself stuck at the Antarctic McMurdo base because of bad weather during a scientific expedition at the same time as NASA astronaut Cady Coleman. Talking with Cady about his plan to apply and hope for the best, she encouraged him to give it the best he had.

Alexander sees being an astronaut as a logical extension of his career as volcanologist, with similarities between the two professions. Both are relatively new, taking off in the 1960s, and his fieldwork studying volcanoes has prepared him for working in space. Volcanoes and deep space are hostile environments that are not easy on humans or equipment.

The Space Station is a first step out into space to find out what is around us in that big black sky above us.

As Alexander puts it: “Both professions seek scientific data that can only be found in remote environments but bring back immediate benefits for people back home.”

He sees the International Space Station as serving a double role. It is a place for doing unique science but it also offers humans a perspective on Earth that would not be possible otherwise. His goal was to share his astronaut perspective of Earth during his Blue Dot mission.

A perfect walk
A perfect walk

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