"Kaleidoscope" (1949) in Ray Bradbury's The Illustrated Man.
The crew of a rocket ship are ejected into space after an explosion and begin to drift away from each other. Stone says he's headed for the moon, Hollis floats toward Earth and will burn up in the atmosphere. Stimson can't control his fear, and Hollis tries to calm him down, with Applegate joining the conversation. Hollis is overcome with helpless anger.
And the radio play was Episode 48 (Sept. 15, 1951) of Dimension X.
Ray Bradbury also hosted a fantastic modern radio adaptation of "Kaleidoscope". It played frequently on NPR stations in the 1980's as part of a series called Bradbury 13. Stereo, great sound effects, music. All thirteen episodes of the series are worth a listen.