Before revision: CAVES 2011 Randolph Bresnik – NASA Sergey Ryzhikov – Roscosmos Norishige Kanai – JAXA Tim Peake – ESA Thomas Pesquet – ESA CAVES 2012 Michael Fincke – NASA Andrew Feustel – NASA Nikolai Tikhonov – Roscosmos Soichi Noguchi – JAXA David Saint-Jacques – CSA Andreas Mogensen – ESA CAVES 2013 Jeremy Hansen – CSA Mike Barratt – NASA Jack Fischer – NASA Aleksei Ovchinin – Roscosmos Satoshi Furukawa – JAXA Paolo Nespoli – ESA CAVES 2014 Scott Tingle – NASA Alexander Mirsurkin – Roscosmos Sergey Kud-Sverchkov – Roscosmos Luca Parmitano – ESA Matthias Maurer – ESA (Eurocom at the time, Astronaut since 2015) CAVES 2016 Jessica Meir – NASA Ricky Arnold – NASA Sergei Korsakov – Roscosmos Aki Hoshide – JAXA Ye Guangfu – CNSA Pedro Duque – ESA CAVES 2019 Joe Acaba- NASA Jeanette Epps- NASA Joshua Kutryk- CSA Alexander Gerst- ESA Takuya Onishi- JAXA Nikolai Chub- Roscosmo
After revision: CAVES 2011 Randolph Bresnik – NASA Sergey Ryzhikov – Roscosmos Norishige Kanai – JAXA Tim Peake – ESA Thomas Pesquet – ESA CAVES 2012 Michael Fincke – NASA Andrew Feustel – NASA Nikolai Tikhonov – Roscosmos Soichi Noguchi – JAXA David Saint-Jacques – CSA Andreas Mogensen – ESA CAVES 2013 Jeremy Hansen – CSA Mike Barratt – NASA Jack Fischer – NASA Aleksei Ovchinin – Roscosmos Satoshi Furukawa – JAXA Paolo Nespoli – ESA CAVES 2014 Scott Tingle – NASA Alexander Mirsurkin – Roscosmos Sergey Kud-Sverchkov – Roscosmos Luca Parmitano – ESA Matthias Maurer – ESA (Eurocom at the time, Astronaut since 2015) CAVES 2016 Jessica Meir – NASA Ricky Arnold – NASA Sergei Korsakov – Roscosmos Aki Hoshide – JAXA Ye Guangfu – CNSA Pedro Duque – ESA CAVES 2019 Joe Acaba - NASA Jeanette Epps - NASA Joshua Kutryk - CSA Alexander Gerst - ESA Takuya Onishi - JAXA Nikolay Chub - Roscosmo