Is It an Anomaly?

Nine experienced mountaineers — students and graduates of a Soviet technical university, led by a certified expedition leader — set up camp on a steep snow-covered slope in the northern Ural Mountains during a brutal winter night. Temperatures had dropped to around -25°C. Sometime before dawn, all nine cut their tent open from the inside and fled downhill in the dark, most without boots, some in only socks. They made it roughly 1.5 kilometers to a tree line before dying. Five deaths were ruled hypothermia. The other four are harder to explain cleanly: two had crushing chest injuries the original autopsy compared to a high-speed car crash, one had a major skull fracture, and one body recovered months later from a nearby stream was missing its tongue, eyes, and portions of its lips. Three victims' clothing tested positive for elevated beta radiation. The original Soviet investigation closed with the cause listed as 'a compelling natural force which the hikers were unable to overcome' — a phrase that, frankly, did a lot of heavy lifting. The case stayed officially unsolved for six decades. A 2020 reinvestigation and a 2021 peer-reviewed study finally proposed a mechanistic explanation. Whether that explanation fully accounts for every detail is still, depending on who you ask, an open question.