The discovery indicates water may have remained stable on Mars for much longer than scientists thought.
Articles on Ancient sediments
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Sharks have ruled the Earth’s oceans for 400 million years. Recent research on fossil shark teeth has discovered an innovative method for dating ancient sediments.
While NASA rovers on the surface of Mars look for hints of life, researchers back on Earth are studying ‘echoes of life’ from ancient basins – hoping that the two sites might be similar.
Pollen can become preserved in sediment deposits over thousands, or even millions, of years.
A new environmental record for a prehistoric site in Kenya helped researchers figure out how external conditions influenced which of our ancient ancestors lived there, with what way of life.
The analysis suggests that there was a mass extinction event at the time of the end-Permian, on land - and that it happened at the same time as the marine end-Permian extinction.
Evidence shows Native Americans in New England lived lightly on the land for thousands of years. It wasn’t until Europeans arrived that the landscape experienced major human impacts.
Did you recently hear news that Earth’s oldest pigments were hot pink? That’s not quite right. When they were in living bacteria a billion years ago, they were performing photosynthesis – and green.
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Professor Emerita of Biology, Indiana University
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Professor, University of the Witwatersrand
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Lecturer of Biological and Biomedical Sciences, Bryant University
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Dean of the Harpur College of Arts and Sciences and Professor of Anthropology, Binghamton University, State University of New York
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Senior Research Fellow, Nelson Mandela University
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Professor of Environmental Science, Emerson College
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Director of the Human Origins Program, Smithsonian Institution
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Director, Harvard Forest, Harvard University
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Distinguished Professor Emeritus, University of Florida
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Ph.D. Student in Geological Sciences, University of Florida
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Senior Lecturer, School of Earth and Planetary Sciences, Curtin University