Thomas Reiter
Director of HSO

Thomas Reiter

Thomas Reiter took up duty as Director of Human Spaceflight and Operations (D/HSO), and Head of ESOC in Darmstadt, Germany, on 18 April 2011.

As a European astronaut, Thomas Reiter flew on the ESA/Russian EuroMir '95 mission to the Mir space station as a Flight Engineer on 3 September 1995, spending a record 179 days in space. He performed two spacewalks and conducted 40 European scientific experiments.

Between 4 July and 22 December 2006, Thomas Reiter flew on the Astrolab mission, ESA's first long-duration mission to the International Space Station. He spent 166 days aboard as Flight Engineer 2 in the Expedition 13 and 14 crews. After 171 days in space, he returned to Earth with STS-116.

Thomas Reiter holds the European record of 350 days in space – the most experienced non-American or non-Russian astronaut by time. After his active astronaut career, he was named on 1 October 2007 as a member of the Executive Board of the German Aerospace Center (DLR) responsible for Space Research and Technology.

On 1 April 2011, he became Director of ESA’s new Directorate of Human Spaceflight and Operations (D/HSO), responsible for managing Europe’s contribution to the International Space Station, ESA's human spaceflight activities, the operations of ESA's missions and management of the corresponding ground segments.

Last update: 31 October 2013

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