But even assuming that story is true...
A group of people pitch tent on a slope. In the middle of the night they hear an avalanche that sounds like it's coming directly for them.
They flee from their tents, not having time to dress.
The avalanche passes. Some of them attempt to get back to their tents but because it's dark and sub-zero and they have few clothes on, they die.
One fractures his skull, presumably by falling in the dark.
Four of the skiiers fall into a ravine by accident. They are crushed due to the fall and the weight of snow that piles on top of them, triggered by their fall.
So, to account for the apparently inexplicable facts, assuming they are true ~
We discovered that the tent was half torn down and covered with snow.
Either it was struck by the edge of the avalanche or it was damaged when the skiers fled, and it later snowed.
Investigators matched the footprints to the members of the group, saying there was no evidence of a struggle or that other people had entered the camp.
Of course not.
Sharavin found the first two bodies at the edge of the forest, under a towering pine tree. The two — Georgy Krivonischenko, 24, and Yury Doroshenko, 21, were barefoot and dressed in their underclothes. Charred remains of a fire lay nearby
They couldn't find their way back to the camp so they lit a fire but still died of hyperthermia.
The next three bodies — Dyatlov, Zina Kolmogorova, 22, and Rustem Slobodin, 23 — were found between the tree and the camp. The way the bodies were lying indicated that the three had been trying to return to the camp.
Again, they died of cold whilst trying to find their way back, as would be expected. Clearly they wouldn't have tried to get back to camp if they believe that some danger remained there.
Doctors said the five had died of hypothermia.
And there you go. No mystery there.
It took two months to locate the remaining skiers. Their bodies were found buried under four meters of snow in a forest ravine, 75 meters away from the pine tree. The four — Nicolas Thibeaux-Brignollel, 24, Ludmila Dubinina, 21, Alexander Zolotaryov, 37, and Alexander Kolevatov, 25 — appeared to have suffered traumatic deaths. Thibeaux-Brignollel’s skull had been crushed, and Dubunina and Zolotarev had numerous broken ribs.
Pretty consistent with falling into a ravine and being covered by tons of snow.
Dubinina also had no tongue.
The tongue is usually the first body part to be eaten by scavengers, so this isn't in the least surprising for a body spending 2 months in the wilderness.
The bodies, however, showed no external wounds.
No, they fell onto snow and snow piled on top of them so it's perfectly possible they had no external wounds.
The four were better dressed than the rest, and those who had died first had apparently relinquished their clothes to the others. Zolotaryov was wearing Dubinina’s faux fur coat and hat, while Dubinina’s foot was wrapped in a piece of Krivonishenko’s wool pants.
They exchanged clothes by the fire before they set off in search of the camp and subsequently fell into the ravine.
Deepening the mystery, a test of the clothes found they contained high levels of radiation.
High as compared to what? This statement is meaningless.
a doctor who examined the bodies in 1959 said he believed that no man could have inflicted the injuries because the force of the blows had been too strong and no soft tissue had been damaged,
Precisely what you'd expect from falling onto snow and having tons of snow piled on top of you.
And what does the chief investigator come up with?
Ivanov speculated that one skier might have left the tent during the night, seen a sphere and woken up the others with his cries. Ivanov said the sphere might have exploded as they ran toward the forest, killing the four who had serious injuries and cracking Slobodin’s skull.
Unbelievable. No wonder he didn't solve the case, he was insane.