The Ark in Space Salmon of "SFX" rated the serial four and a half out of five stars, calling it "brimming with confidence". Salmon wrote that the concept of the Wirrn were so terrifying that the poor effects did not matter. In an analysis of apocalyptic themes in "Doctor Who", academic Andrew Crome highlighted the explicit religious influences on the writing of "The Ark in Space". He considered the eponymous Ark to be an analogue of the Biblical story of Noah's Ark, the ancient flood myth related in the Book of Genesis, and that the naming of the Nerva Beacon commander as Noah was
Captain Noah and His Floating Zoo displeasure with man ("There’s nothing but sinning, wickedness and violence there! / Remind me to wash mankind right out of my hair!"). Noah is then commanded to build an ark of gopher wood and fill it with pairs of animals—one male and one female—in spite of the constant mocking by the sinful citizens of Fun City ("Noah! Noah! Don’t do any more! Your boat’s a laughing stock! / Ha! Ha! But Noah went right on building the ark, and his hammer went knock, knock, knock!"). Accompanied by a Latin-American samba rhythm, Noah and his family then load the ark with