Scientists don't call it the "Great Dying" for nothing. About 252 million years ago, upward of 80% of all marine species ...
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New discovery questions theory that earth was covered by ocean four billion years agoResearchers measured the oxygen compositions of zircon, a mineral that formed in some rocks that made up the Earth’s early continental landmasses some 3.2 to 4.2 billion years ago. They found ...
Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from ... 1,800 miles (2,900km) below Earth's ...
The unique geological formation came into existence 2 billion years ago when magma rose from the ... Yohey Suzuki, an associate professor of earth and planetary science at the University of ...
We're in the midst of the Earth’s sixth mass extinction crisis ... race — Homo sapiens sapiens — migrated out of Africa to the Middle East 90,000 years ago, to Europe and Australia 40,000 years ago, ...
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New research suggests the violent explosions of dying stars may have caused two of Earth’s biggest mass extinctions millions ...
The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth. Huge volcanoes erupted, releasing 100,000 billion metric tons of carbon ...
The calculations suggested that 2.5 supernovas might affect Earth in some way every 1 billion ... mass extinctions on Earth. Cataclysmic events have taken place five times in the past 500 million ...
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