When the first astronaut walks out onto Mars surface, it can be clearly seen in profile there is no glass visor on his space helmet.
Control Voice: (opening narration) In the vast immensities of cosmic space, bold adventurers streak their their way to join battle with strange enemies on strange worlds. The alien, the unknown, perhaps even the invisible, armed only with man's earthbound knowledge.
Captain Buckley: Funny thing that sand, isn't it? Looks just like the ocean at the Cape. I used to love to look at the moon on the water.
Control Voice: (closing narration) Battle joined; Casualties: Yes; Resolution: Victory, of a sort A painful step from the crib of destiny. On another day, a friend perhaps instead of a deadly peril. Part of the saga of the Space Pioneers.
According to David J. Schow's The Outer Limits Companion, this episode had an alternate title: "The Yellow Sand."