The evidence pointing toward a major cometary impact that heralded the closure of the last ice age 13,000 years ago is steadily growing, with a new study from the University of Kansas offering more data that supports what is known as the Younger Dryas impact hypothesis.
"The hypothesis is that a large comet fragmented and the chunks impacted the Earth, causing this disaster," explains University of Kansas Emeritus Professor of Physics & Astronomy Adrian Melott. "A number of different chemical signatures--carbon dioxide, nitrate, ammonia and others--all seem to indicate that an astonishing 10 percent of the Earth's land surface, or about 10 million square kilometers [3,9 million square miles], was consumed by fires."
"The hypothesis is that a large comet fragmented and the chunks impacted the Earth, causing this disaster," explains University of Kansas Emeritus Professor of Physics & Astronomy Adrian Melott. "A number of different chemical signatures--carbon dioxide, nitrate, ammonia and others--all seem to indicate that an astonishing 10 percent of the Earth's land surface, or about 10 million square kilometers [3,9 million square miles], was consumed by fires."
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