Ukert crater geometry

Ukert is a crater about twenty-three kilometres across just north of Sinus Medii, near the middle of the Moon's face as seen from Earth. According to the account the archive holds, an oblique image from the Apollo 17 mapping camera shows a triangular inner platform, rectilinear geometry in the surrounding highlands, and a cylindrical structure with an arm that casts a shadow. The telling adds that the Apollo astronaut Edgar Mitchell gave an interesting response when asked what the crater contained.

What is on the record

A single NewsNation telling carries the case. Two claimants are resolved: Max Dereckshani, a transcription of the physicist Maaneli "Max" Derakhshani, and the Apollo 11 crew. That second entry is not clean. The telling itself names the Apollo 17 crew, whose orbital pass produced the frame, and no Apollo crew is quoted about Ukert in the telling or in any transcript the archive has found. Edgar Mitchell flew on Apollo 14. His remark reaches the telling second-hand and its content is not reported. The file holds no documents, and the archive's canonical spelling, Eukert, is a transcription.

The frame exists, though the telling never numbers it. Apollo 17's mapping camera shot a run of oblique frames looking south across Ukert and Sinus Medii in December 1972, AS17-M-1674 and AS17-M-1675 among them. The crater's triangular floor is a noted feature in lunar observing guides and follows from a rim that bulges outward to the north and east. Richard Hoagland made earlier claims about the same triangle in the 1990s from Earth-based full-Moon views and Clementine data, and placed his "Shard" and "Tower" in a hand-held Apollo 10 frame of the same neighbourhood, so the shape has a history in anomaly circles that predates this telling. Geology's version is an irregular rim, slumped wall material, and a low Sun turning slopes into straight edges and a boulder into a cylinder with a shadow.

Why it sits where it does

The case grades L3 on two claimants. One of them is a crew that said nothing on the record about this crater, and everything arrives through one video, so the tier is arithmetic rather than corroboration. What the frame shows is a well-photographed crater with an odd floor. What is on that floor is not resolved here.