A recent discovery of a sponge fossil may be the oldest known animal fossil, extending the evolutionary timeline by hundreds of millions of years.
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Articles on Snowball Earth
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Scientists have now dated the ‘Great Oxidation Event’ to just before the planet’s first ‘snowball’ period.
Earth’s thermostat can fail spectacularly at times. Around 700 million years ago, huge volcanic eruptions triggered “Snowball Earth”.
Is this where it all began?
Glaciers once covered most of Earth’s surface and reflected the sun’s heat back into space.
More evidence that planet Earth has gone through various frozen phases.
Top contributors
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Professor of Geology, University of Adelaide
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Professor of Planetary Geosciences, The Open University
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Professor of Geosystems, University of Birmingham
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Associate Professor in Earth Science, University of Southampton
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Research Fellow, University of Adelaide
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Research Fellow, School of Earth & Environmental Sciences, University of St Andrews
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Professor, Earth Sciences, Laurentian University
