“Can’t Be Laughed Off”: Project Sign, Project Grudge and the 1948 Estimate Nobody Can Find

Part 21 of a series reassessing the documentary record behind the 1933 Magenta narrative. TL;DR Project Sign seriously considered interplanetary explanations, but its surviving reports remained inconclusive and described missing physical evidence. Edward Ruppelt and Dewey Fournet later said they had read an interplanetary “Estimate of the Situation.” No identified copy is available. Its contents, rejection and destruction rest on later accounts and remain unverified. A surviving Top Secret st...