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Earth
Tectonics in the tropics trigger Earth’s ice ages
Over the last 540 million years, the Earth has weathered three major ice ages -- periods during which global temperatures plummeted, producing extensive ice...
Scientists go to extremes to reveal make-up of Earth’s core
Experiments conducted at extreme conditions are giving scientists new insights into the chemical make-up of the Earth's core.
Advanced laboratory techniques reveal that our planet's...
Plate Tectonics
New light into the recent evolution of the African rift valley
Continental rift valleys are huge fractures on the surface of our planet that progressively break continental plates with the eventual development of new oceans....
Tectonics in the tropics trigger Earth’s ice ages
Over the last 540 million years, the Earth has weathered three major ice ages -- periods during which global temperatures plummeted, producing extensive ice...
Volcanoes
Scientists argue for more comprehensive studies of Cascade volcanoes
The string of volcanoes in the Cascades Arc, ranging from California's Mt. Lassen in the south to Washington's Mt. Baker in the north, have...
Earthquake
Hundreds of bubble streams link biology, seismology off Washington’s coast
Off the coast of Washington, columns of bubbles rise from the seafloor, as if evidence of a sleeping dragon lying below. But these bubbles...
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Minerals
Mars
Naturally occurring ‘batteries’ fueled organic carbon synthesis on Mars
Mars' organic carbon may have originated from a series of electrochemical reactions between briny liquids and volcanic minerals, according to new analyses of three...
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...
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...
