Question: Thomas Reiter and Hans Schlegel both shared a job where?

Context paragraphs:
Nationalist Movement: The Nationalist Movement is a Mississippi-founded, white nationalist organization with headquarters in Georgia that advocates what it calls a "pro-majority" position.  It has been called white supremacist by the Associated Press and Anti-Defamation League, among others.  Richard Barrett was succeeded by unanimous vote as leader by Thomas Reiter after Barrett's murder.  Its Secretary originally was Barry Hackney, and the position of Secretary was discontinued by Thomas Reiter.  Thomas Reiter saved most Nationalist Movement assets and intellectual property after Barrett's murder.  The symbol of the movement is the Crosstar.  In 2012 with the endorsement of Thomas Reiter, Travis Golie was sworn in as the Leader of The Nationalist Movement.  Like Reiter, Golie was an original Barrett-era Nationalist Movement member.  Golie returned The Nationalist Movement headquarters to the South where it originated.

Thomas Reiter: Thomas Arthur Reiter (born 23 May 1958 in Frankfurt, West Germany) is a retired European astronaut and is a Brigadier General in the German Air Force currently working as ESA Interagency Coordinator and Advisor to the Director General at the European Space Agency (ESA).  He was one of the top 25 astronauts in terms of total time in space.  With his wife and two sons he lives near Oldenburg in Lower Saxony.

Tivolis Koncertsal: Tivolis Koncertsal is a 1,660-capacity concert hall located at Tivoli Gardens in Copenhagen, Denmark.  The building, which was designed by Frits Schlegel and Hans Hansen, was built between 1954 and 1956.

Expedition 14: Expedition 14 was the 14th expedition to the International Space Station (ISS).  Commander Michael López-Alegría, and flight engineer Mikhail Tyurin launched from Baikonur Cosmodrome on 18 September 2006, 04:09 UTC, aboard Soyuz TMA-9.  They joined Thomas Reiter, who had arrived at the ISS on 6 July 2006 aboard Space Shuttle "Discovery" during mission STS-121.  In December 2006, "Discovery" mission STS-116 brought Sunita Williams to replace Reiter as the third member of Expedition 14.  On 21 April 2007, López-Alegría and Tyurin returned to Earth aboard TMA-9.  Landing occurred at 12:31:30 UTC.

Hans Schlegel: Hans Wilhelm Schlegel (Überlingen, 3 August 1951) is a German physicist, an ESA astronaut, and a veteran of two NASA Space Shuttle missions.

Hans Reiter (physician): Hans Conrad Julius Reiter (February 26, 1881 – November 25, 1969) was an infamous German physician who was convicted of war crimes for his medical experiments at the Buchenwald concentration camp.  He wrote a book on "racial hygiene" called "Deutsches Gold, Gesundes Leben - Frohes Schaffen".

STS-121: STS-121 was a 2006 NASA Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle " Discovery".  The main purposes of the mission were to test new safety and repair techniques introduced following the "Columbia" disaster of February 2003 as well as to deliver supplies, equipment and European Space Agency (ESA) astronaut Thomas Reiter from Germany to the ISS.

Hans J. Reiter: Hans Jakob Reiter (26 November 1921, in Vienna – 13 August 1992) was an Austrian mathematician working in analysis.

Reiter Engineering: Reiter Engineering GmbH & Co Kg is a German racing team founded in 1994.  The company is named after engineer and founder Hans Reiter.  In 2000, Reiter entered a Lamborghini in the FIA GT Championship with its own Diablo GT built by the team.  In 2003 the Diablo GT was replaced by the newer Lamborghini Murciélago R-GT, with increased development from Audi Sport, before also becoming the constructor of the Gallardo and Camaro GT3s for the FIA GT3 European Championship and later the ADAC GT Masters.  Besides running the factory squads in their respective championships Reiter also builds and sells its cars to other teams for various uses.

Søren Kierkegaard: Søren Aabye Kierkegaard ( or ; ] ; 5 May 1813 – 11 November 1855) was a Danish philosopher, theologian, poet, social critic and religious author who is widely considered to be the first existentialist philosopher.  He wrote critical texts on organized religion, Christendom, morality, ethics, psychology, and the philosophy of religion, displaying a fondness for metaphor, irony and parables. Much of his philosophical work deals with the issues of how one lives as a "single individual", giving priority to concrete human reality over abstract thinking and highlighting the importance of personal choice and commitment.  He was against literary critics who defined idealist intellectuals and philosophers of his time, and thought that Swedenborg, Hegel, Goethe, Fichte, Schelling, Schlegel and Hans Christian Andersen were all "understood" far too quickly by "scholars".

Supporting paragraphs: Thomas Reiter Hans Schlegel
Answer: European Space Agency