Earth history, as a scientific topic, encompasses the reconstruction and analysis of the planet’s physical, chemical, and biological evolution from its formation ~4.54 billion years ago to the present. It integrates evidence from stratigraphy, geochronology, paleontology, geochemistry, and tectonics to delineate major intervals (eons, eras, periods, epochs) and events, such as crust formation, supercontinent cycles, ocean–atmosphere evolution, biotic radiations, and mass extinctions. Research in earth history focuses on quantifying rates and magnitudes of processes (e.g., plate motions, climate shifts, biogeochemical cycles) and constraining cause–effect relationships that link Earth’s interior, surface environments, and biosphere through deep time.
A study led by researchers from the University of Sydney and the University of Adelaide has revealed how the breakup of an ancient supercontinent 1.5 billion years ago transformed Earth's surface environments, paving the ...
Earth Sciences
Oct 28, 2025
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146
Rocks store information from long ago. For instance, their composition can reveal the environmental conditions during their formation. This makes them extremely important in climate research. This led a research team at the ...
Earth Sciences
Oct 17, 2025
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115
Throughout most of Earth's geological history, its paleoclimate has remained hospitable to life—largely thanks to continental silicate weathering, which acts as a long-term planetary thermostat.
Earth Sciences
Oct 14, 2025
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59
Scientists at MIT and elsewhere have discovered extremely rare remnants of "proto Earth," which formed about 4.5 billion years ago, before a colossal collision irreversibly altered the primitive planet's composition and produced ...
Planetary Sciences
Oct 14, 2025
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296
For billions of years, Earth's continents have remained remarkably stable, forming the foundation for mountains, ecosystems and civilizations. But the secret to their stability has mystified scientists for more than a century. ...
Earth Sciences
Oct 13, 2025
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203
Earth scientists often face huge challenges when researching Earth's history: many significant events occurred such a long time ago that there is little direct evidence available. Consequently, researchers often have to rely ...
Earth Sciences
Sep 25, 2025
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96
University of Nebraska–Lincoln's S. Kathleen Lyons is providing a new framework—Earth system engineering—for examining how organisms, including humans, have fundamentally altered ecosystems on a global scale across hundreds, ...
Earth Sciences
Sep 23, 2025
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26
How did humans become human? Understanding when, where and in what environmental conditions our early ancestors lived is central to solving the puzzle of human evolution.
Earth Sciences
Sep 16, 2025
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110
New Curtin University research has uncovered a striking link between the structure of our galaxy and the evolution of Earth's crust, showing its development was shaped by the impact of meteorites during its journey through ...
Astronomy
Sep 16, 2025
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122
A study by researchers at the University of Oxford, University of Leeds, and University College London has identified a new constraint on the chemistry of Earth's core, by showing how it was able to crystallize millions of ...
Earth Sciences
Sep 4, 2025
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109
