A new gravity map of Earth's seafloor fills in blanks and reveals its geologic history in greater detail.
High-tech instruments and old-fashioned groundwork remain important in the aftermath of an earthquake.
The 'boring billion:' the long evolutionary pause when algae ruled the Earth, might be due to stalled plate tectonics.
New study challenges the idea that the rate of plate movement remains stable.
The formation of mountains 450 million years ago may have allowed invasive species to storm the continent that gave rise to North America.
The map could indicate new sources of oil and gas deposits, such as those along southern Australia. Continue reading →
Earth's two giant, remarkably permanent hotspots have been sculpting continents for billions of years. Continue reading →
A seismological blob under California appears to be a piece of a tectonic plate thought long gone. ->
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