David Meltzer

Zimbabwe Star: Comet not behind mass extinction at Ice Age end: Study

Meltzer, comet, Ice Age, SMUThe Zimbabwe Star news outlet has covered the research of SMU archaeologist David J. Meltzer with the article “A comet impact DIDN’T spark climate change and trigger a mass extinction 12,800 years ago, study claims.”

The Zimbabwe Star, from the IANS news service, highlights Meltzer’s latest study to show that a comet, or any other kind of extraterrestrial impact, was not responsible for sudden climate change at the end of the Ice Age 12,800 years ago. Continue reading

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Daily Mail: A comet impact DIDN’T spark climate change and trigger a mass extinction 12,800 years ago, study claims

Daily Mail, Meltzer, SMU, comet, Clovis, mass extinctionThe U.K.’s Daily Mail news outlet has covered the research of SMU archaeologist David J. Meltzer with the article “A comet impact DIDN’T spark climate change and trigger a mass extinction 12,800 years ago, study claims

The Daily Mail piece by Jonathan O’Callaghn highlights Meltzer’s latest study to show that a comet, or any other kind of extraterrestrial impact, was not responsible for sudden climate change at the end of the Ice Age 12,800 years ago. Continue reading

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Science: What Caused a 1300-Year Deep Freeze?

SMU, comet, Meltzer, Clovis points, ScienceThe widely followed science news outlet Science covered the research of SMU archaeologist David J. Meltzer with the article What Caused a 1300-Year Deep Freeze?

The Science piece by Michael Balter highlights Meltzer’s new study showing a comet was not responsible for sudden climate change at the end of the Ice Age. Proponents of the comet-impact theory have pointed to sedimentary deposits that they say prove a comet hit the Earth, killing the Clovis culture and causing mass extinction of many animals. Continue reading

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Nature: Prehistoric impact idea smacked down — dates of reported cosmic collision can’t explain North American extinctions

Meltzer comet, Nature magWidely followed science magazine Nature covered the research of SMU archaeologist David J. Meltzer with the article Prehistoric impact idea smacked down.

The Nature piece by Alexandra Witze focuses on Meltzer’s latest study to show that a comet was not responsible for sudden climate change at the end of the Ice Age 12,800 years ago. Proponents of the comet-impact theory have pointed to sedimentary deposits that they say prove that an object from outer space hit the Earth, killing the Clovis culture and causing the mass extinction of many animals.
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Comet theory false; doesn’t explain cold snap at the end of the Ice Age, Clovis changes or mass animal extinction

Comet, Meltzer, SMU, Clovis, boundary layerControversy still rages over what sparked climate change at the end of the Ice Age 12,800 years ago, including a theory it was caused by a comet hitting the Earth.

As proof, proponents point to sediments with deposits they believe could only result from a cosmic impact. A new study disproves the theory, said lead-author and archaeologist David Meltzer, SMU. Continue reading

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Nature: Oldest American Artifact Unearthed

Nature Magazine journalist Rex Dalton interviewed SMU archaeologist David J. Meltzer as an expert source to weigh in on the claim by University of Oregon archaeologists who say they’ve found the oldest known artifact in the Americas.

Dalton’s Nov. 5 article, “Oldest American Artifact Unearthed,” quotes a number of expert sources on the discovery of a scraper-like tool in an Oregon cave. The discovery team dates the tool to 14,230 years ago. Continue reading

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D Magazine: David Meltzer and other “Dallas Big Thinkers”

Meltzer%2CDavid%2C-DMag%2C-2011-250x213.jpgD Magazine journalist Dawn McMullan reported on the accomplishments of SMU archaeologist David J. Meltzer in the monthly magazine’s “Dallas’ Big Thinkers” article, which published Sept. 21.

A member of the National Academy of Sciences, Meltzer researches the origins, antiquity, and adaptations of the first Americans who colonized the North American continent at the end of the Ice Age. He focuses on how these hunter-gatherers met the challenges of moving across and adapting to the vast, ecologically diverse landscape of Late Glacial North America during a time of significant climate change.
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Archaeology: “Undiscovery of Year” to Meltzer for refuting comet theory

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Archaeology magazine, published by the Archaeological Institute of America, recognized
SMU archaeologist David Meltzer and his colleague Vance Holliday of the University of Arizona for their “undiscovery” that the important ancient Clovis culture didn’t die out from the impact of a comet.

Melter and Holliday, who published their research in the October issue of Current Anthropology, challenged the controversial theory that the impact of an ancient comet devastated the Clovis people, one of the earliest known cultures to inhabit North America.

Nothing in the archaeological record suggests an abrupt collapse of Clovis populations, say Meltzer and Holliday. (Image: NASA)
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2010 a year of advances for SMU scientific researchers at the vanguard of those helping civilization

ATLAS%20150x120.jpgSMU scientists are at the forefront of cutting-edge research aimed at addressing some of the world’s most pressing challenges, questions and issues.

See a sampling of the work they tackle, from Parkinson’s and Alzheimer’s diseases, to immigration, diabetes, evolution, childhood obesity and more. Besides working in campus labs and within the Dallas-area community, SMU scientists conduct research throughout the world. Continue reading

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