A series of publications purport to provide evidence that the Earth was subjected to an
extraterrestrial event or events at∼ 12.9 ka creating an environmental cataclysm and the …

Abstract Firestone et al., 2007, PNAS 104 (41): 16,016–16,021, proposed that a major
cosmic impact, circa 10,835 cal. BCE, triggered the Younger Dryas (YD) climate shift along …

We reject the claim of Holliday et al.(2023) that they have “comprehensively refuted” the
Younger Dryas impact hypothesis (YDIH). Scores of peer-reviewed articles in dozens of …

The study of the peopling of the Americas has been transformed in the past decade by
astonishing progress in paleogenomic research. Ancient genomes now show that Native …

The progress of science has sometimes been unjustifiably delayed by the premature
rejection of a hypothesis for which substantial evidence existed and which later achieved …

This review systematically presents all finds of geogenic, impact-induced, and
extraterrestrial iron silicide minerals known at the end of 2021. The respective morphological …

In an article comprising some 96,000 words, Holliday et al.(2023)(HEA) claim to have
“comprehensively refuted” the Younger Dryas impact hypothesis (YDIH), even though it has …

One of the prevailing hypotheses for the origin of the Younger Dryas (YD) cooling event is
that it resulted from a bolide impact or airburst. Purported impact markers peak at or near the …

Abstract Hall's Cave, Texas, contains a radiocarbon dated sediment record extending from
the Last Glacial Maximum through the Holocene. Changes in the characteristics of the …

The discovery of a large putative impact crater buried beneath Hiawatha Glacier along the
margin of the northwestern Greenland Ice Sheet has reinvigorated interest into the nature of …