At https://dailygalaxy.com/2026/01/space-explosion-wiped-out-mammoths-humans/ … … 13,000 years ago, at the boundary of the Younger Dryas event, a comet exploded over North America. It may already have fragmented and is not necessarily the full picture. That is the storyline we have become used to over the last few years. Now, scientists have chosen to analyse some ancient material and we are back. They have found traces of extreme heat and pressure, such as shocked quartz buried in layers of ancient sediments. The study was published in PLOS One and is based on evidence from three separate sites. In Arizona, New Mexico, and California. They aren’t letting this one go no matter how hard mainstream seek to deny reality.
The shocked quartz came from very tiny sand grains that had been fractured and altered in a way that only happens under extreme pressure – such as blast. The comet, or the fragments of a comet, seem to have exploded in mid air – without actually reaching the surface. This is new territory for science. We haven’t really been here before – apart from Hammam. Normally, the key to a cosmic event is an impact crater. Airbursts do not create craters.
You can also read the story as https://cosmictusk.com/shocked-quartz-at-the-boundary-and-a-plasma-plume-in-the-backyard/ … plasma dynamics are changing science. Here, it is the Comet Research Group pushing the narrative and publishing their efforts at PLOS One.
Meteorites and fragments from shedding comets are still a feature of the sky. See for example https://www.livescience.com/space/meteoroids/100-000-mph-comet-fragment-explodes-in-green-fireball-over-great-lakes-eerie-videos-show ….