This is Thrilling Wonder Stories for February 1950, cover by Earle Bergey. The ISFDB entry for this issue is here. I found this version of the cover at Pulp Covers. The cover preserved at the Internet Archive has somewhat less vivid color by less wear:
In addition to this rather dramatic Earle Bergey cover, there is a fetching Virgil Finlay illustration to Leigh Brackett’s story “The Dancing Girl of Ganymede.”
Leigh Brackett (1915-1978) was a rare example of a woman writing in the pulp science fiction genre. She would survive the pulp era long enough to get a screenwriting credit on The Empire Strikes Back.
You can read and downland this entire issue at The Internet Archive.
