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Earth
Iron-silica particles unlock part of the mystery of Earth’s oxygenation
The oxygenation of Earth's atmosphere was thanks, in part, to iron and silica particles in ancient seawater, according to a new study by geomicrobiologists...
Chemical footprint in present-day atmosphere mimics that observed in ancient rock
Early Earth was a hot, gaseous, dusty and dynamic planet with an atmosphere and an ocean. Then its surface cooled and stabilized enough for...
Plate Tectonics
Study finds deep subterranean connection between two Japan volcanoes
Scientists have confirmed for the first time that radical changes of one volcano in southern Japan was the direct result of an erupting volcano...
Scientists propose solution to ‘Gaia puzzle’
Scientists may have solved a long-standing puzzle over why conditions on Earth have remained stable enough for life to evolve over billions of years....
Volcanoes
Size matters: If you are a bubble of volcanic gas
The chemical composition of gases emitted from volcanoes -- which are used to monitor changes in volcanic activity -- can change depending on the...
Earthquake
New understanding of deep earthquakes
Researchers have known for decades that deep earthquakes -- those deeper than 60 kilometers, or about 37 miles below the Earth's surface -- radiate...
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Paleontology
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Dinosaurs
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Mars
Mars valleys traced back to precipitation
The surface of Mars bears imprints of structures that resemble fluvial steam networks on Earth. Scientists therefore assume that there must have been once...
Meteorite ‘Black Beauty’ expands window for when life might have existed...
The early surface of Mars consisting of a liquid magma ocean crystallized extremely rapidly, just 20 million year after the formation of the solar...
Moon
Thank the moon for Earth’s lengthening day
For anyone who has ever wished there were more hours in the day, geoscientists have some good news: Days on Earth are getting longer.
A...
Magma ocean may be responsible for the moon’s early magnetic field
Around four billion years ago, the Moon had a magnetic field that was about as strong as Earth's magnetic field is today. How the...
