This is the kind of story you rarely encounter anymore. I don't want to say anything that would lessen the story's impact, so just listen!
The Cold Equation appeared in the August 1954 issue of Astounding Science Fiction.
X Minus One #15
25 Aug 1955
Bill Rippe (announcer), Bob Hastings, Court Benson, George Lefferts (writer), Jack Arthur, Jay Meredith, Kenneth MacGregor (studio director), Milo Boulton, Tom Godwin (author), Walter Kinsella, William Welch (producer)
Astounding Science Fiction, Aug. '54