Kaleidoscope by Ray Bradbury

Kaleidoscope by Ray Bradbury (Thrilling Wonder Stories, October 1949) begins with an explosion on a spaceship which spills its crew into space “like a dozen wriggling silverfish”. The men move in different directions, some towards the sun, others out to Pluto. The main character, Hollis, ends up drifting towards Earth, and re-entry. They are all in radio contact, but there is no chance they will be rescued: some of the men say nothing at all, some let the veneer of civilization slip away, and one of them just screams endlessly (until Hollis grabs hold of him and smashes his faceplate).
During the various conversations that take place over the radio, Hollis becomes jealous of Lespere, who has been talking about his three wives on as many planets, how he once gambled away twenty thousand dollars when he was drunk, etc.:

“You’re out here, Lespere. It’s all over. It’s just as if it had never happened, isn’t it?”
“No.”
“When anything’s over, it’s just like it never happened. Where’s your life any better than mine, now? While it was happening, yes, but now? Now is what counts. Is it any better, is it?”
“Yes, it’s better!”
“How!”
“Because I got my thoughts; I remember!” cried Lespere, far away, indignant, holding his memories to his chest with both hands.
And he was right. With a feeling of cold water gushing through his head and his body, Hollis knew he was right. There were differences between memories and dreams. He had only dreams of things he had wanted to do, while Lespere had memories of things done and accomplished. And this knowledge began to pull Hollis apart, with a slow, quivering precision.  p. 132

This is more reflectively existential than you would expect from a twenty-nine year old writer appearing in Thrilling Wonder Stories, and there is similar material earlier in the story, in a conversation Hollis has with Applegate:

“Are you angry, Hollis?”
“No.” And he was not. The abstraction had returned and he was a thing of dull concrete, forever falling nowhere.
“You wanted to get to the top all your life, Hollis. And I ruined it for you. You always wondered what happened. I put the black mark on you just before I was tossed out myself.”
“That isn’t important,” said Hollis. And it was not. It was gone. When life is over it is like a flicker of bright film, an instant on the screen, all of its prejudices and passions condensed and illumined for an instant on space, and before you could cry out. There was a happy day, there a bad one, there an evil face, there a good one, the film burned to a cinder, the screen was dark.  p. 131

Eventually (spoiler), Hollis achieves a painful self-awareness about his (“terrible and empty”) life, and realises the only good he can do now is for his ashes to be added to the land below. He wonders if anyone will see him burn on re-entry—and the story ends with a short paragraph where a small boy and his mother wish upon a falling star.
This is an uncharacteristically bleak and reflective story for the time, and it shows a distinct lack of the sentimentality that spoiled some of Bradbury’s later work.
**** (Very Good). 3,400 words. Story link.