In the scientific world of the future, there's no place for unexplainable things like ghosts...
...or is there?
So there was a plausible (albeit far-fetched) explanation for the "ghosts"!
This one-shot tale from Youthful's Captain Science #3 (1951) was illustrated by Don Perlin at the beginning of his long (45+ years) comics career.
In fact, it was his first published work!
Don continued working steadily (writing/penciling/inking/editing/art directing) until the mid-1990s, when he went into semi-retirement.
He still does an occasional cover or spot illustration as well as private commissions.