This is Amazing Stories for February 1947, cover by Robert Gibson Jones. The ISFDB entry for this issue is here. I found this version of the cover at Pulp Covers. You can download and read the whole issue at the Internet Archive.
Pulp Parade #268: Take that, scary space monster thing!
…but which is the scary space monster thing?
Let us cherish what of liberty is left to us and allow each reader to decide for him or herself, depending on his or her aesthetic preferences.