supposed to be installed today but will now be delayed until tomorrow after a potential problem with the space suit was discovered saturday. >> it's an issue that i personal liam having that's very, very cold. >> one of the suits showed may be a sign that it got a little water into the evaporator on the back the flash evaporator says it cooled on the outside. >> reporter: the issue isn't related to what happened in july. that's when i italian astronaut nearly drowned after water leaked into his helmet. a reminder of the dangerous nature of the work being done 20 miles above earth. -- owe 220 miles above earth. risks every astronaut on every mission understands. >> the movie "gravity" is a good movie. you probably don't want to watch