Oleck script per Martin O'Hearn: http://martinohearn.blogspot.com/2021/06/strange-tales-by-jack-oleck.html
Letters: Probably not [Artie] Simek, if one compares his late 1950s work across the Marvel line.
Ben Oda seems to be a better guess.
Pencil credit of J. Makowski? and ink credit of Hy Fleishman removed based on information from Tom Lammers and the Atlas/Timely discussion list.
Wessler script per Biblio info in Robin Snyder's The Comics, Vol. 31, No. 2, February 2020.
Text story with illustrations. Original title: "Rocket Time."