Case file · Retrieval claim
The 'Roswell Slides' and the Mesa Verde child
On 5 May 2015 a paid event in Mexico City unveiled two 1940s Kodachrome slides said to show a Roswell alien; within days researchers read the blurred museum placard in the picture and showed it was a mummified Ancestral Puebloan child once displayed at Mesa Verde.
2015 CE · 37.18, -108.49 · status: hoax
The account
The group that cracked it (the 'Roswell Slides Research Group') used ordinary image-sharpening software. National Park Service records traced the remains, found in 1894, to the Mesa Verde museum and a 1947 transfer to Arizona.
The sceptical view
Not a deliberate fake photograph but a misidentification that was sold as proof; it also exposed the remains of a child to a global audience without the consent of descendant communities.