The irony of this fact is that Clooney didn’t even HAVE to put on the astronaut gear for any point of The Midnight Sky.
Clooney only got into the astronaut suit for the benefit of the Gravity gag.
Clooney’s astronauts are played by the likes of Felicity Jones, David Oyelowo, Kyle Chandler and Demian Bichir.
In his adaptation of Lily Brooks-Dalton’s novel Good Morning, Midnight, Clooney plays an earthbound survivor of an unexplained global tragedy who tries to communicate with the returning shuttle, to tell them not to come back.