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1 (of 12) Didier Queloz receiving his Nobel Prize from H.M. King Carl XVI Gustaf of Sweden at Konserthuset Stockholm on 10 December 2019.

© Nobel Media. Photo: Alexander Mahmo

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2 (of 12) Didier Queloz after receiving his Nobel Prize at Konserthuset Stockholm, 10 December 2019.

© Nobel Media. Photo: Nanaka Adachi

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3 (of 12) Didier Queloz and Sweden's Crown Princess Victoria at the Nobel Prize banquet in the Stockholm City Hall, 10 December 2019.

© Nobel Prize Outreach. Photo: Alexander Mahmoud

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4 (of 12) Twelve of the fifteen Nobel Laureates of 2019 assembled at the Nobel Foundation in Stockholm on 12 December 2019. Back row: James Peebles, Abhijit Banerjee, Didier Queloz, Michael Kremer, William G. Kaelin Jr and Sir Peter J. Ratcliffe. Front row: Olga Tokarczuk, Akira Yoshino, Esther Duflo, M. Stanley Whittingham, Gregg L. Semenza and Michel Mayor.

© Nobel Media. Photo: A. Mahmoud

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5 (of 12) Didier Queloz delivering his Nobel Lecture at the Aula Magna, Stockholm University on 8 December 2019.

© Nobel Media AB. Photo: A. Mahmoud

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6 (of 12) Didier Queloz laughs with museum staff at the 2019 Nobel Laureates' Get together at the Nobel Prize Museum in Stockholm on 6 December 2019.

© Nobel Media. Photo: Alexander Mahmoud

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7 (of 12) Physics Laureate Didier Queloz gives a key to Nobel Prize Museum.

© Nobel Media. Photo: Alexander Mahmoud

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8 (of 12) Nobel Laureates in Physics, Didier Queloz and Michel Mayor, and the Nobel Laureate in Chemistry, Stanley Whittingham in a talk to astronauts on the International Space Station Luca Parmitano and Jessica Meir on 6 December at the Nobel Prize Museum in Stockholm.

© Nobel Media. Photo: Clément Morin

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9 (of 12) Didier Queloz on the day of the announcement of the Nobel Prize in Physics 2019.

Photo: Nick Saffell

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10 (of 12) Didier Queloz with the SPECULOOS team at the University of Cambridge less than 15 minutes after receiving the phone call about the Nobel Prize.

Photo: Peter Pihlmann Pedersen.

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11 (of 12) Didier Queloz (left) and Michel Mayor of the Geneva Observatory in front of ESO’s 3.6-metre telescope at La Silla Observatory in Chile.

Photo: The European Southern Observatory (ESO).

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12 (of 12) Didier Queloz at University of Geneva.

Photo: University of Geneva