The names of Will Daniels's deceased crew mates are those of other fictional astronauts. "Austin" is named for Steve Austin from The Six Million Dollar Man (1974); "Brubaker" is named for Charles Brubaker from Capricorn One (1977); and Taylor is named for George Taylor from Planet of the Apes (1968).
The number of hours in the title, 4,722, is equivalent to 6 1/2 months.
The episode was named one of the best television episodes of 2015 by The Atlantic.
The majority of the episode was filmed in a work quarry in Simi Valley and in Northridge, Los Angeles near the Mojave Desert during the day.
Henstridge was named TVLine's "Performer of the Week" for the week of October 25, 2015, for her performance in this episode, particularly for appearing throughout the whole of it, and for the more 'heartbreaking' scenes near the end.