American Geophysical Union

Decompression wave caused eruption chain reaction

The 2010 eruption of Iceland's Eyjafjallajökull proceeded through fits and starts. A new analysis by Tarasewicz et al.suggests that a downward propagating decompression wave triggered a cascade of explosive eruptions from ...

Oct 29, 2012
3 / 5 (2) 0

Why 'singing' sand dunes hum certain notes

What does Elvis Presley have in common with a sand dune? No, it's not that people sometimes spot both in the vicinity of Las Vegas. Instead, some sand dunes, like The King, can sing. And new research looking ...

Oct 25, 2012
4.8 / 5 (5) 1 | with audio podcast

Deforestation in snowy regions causes more floods

New research suggests that cutting down swaths of forest in snowy regions at least doubles – and potentially quadruples – the number of large floods that occur along the rivers and streams passing through ...

Oct 03, 2012
5 / 5 (1) 0

Asteroid's troughs suggest stunted planet

(Phys.org)—Enormous troughs that reach across the asteroid Vesta may actually be stretch marks that hint of a complexity beyond most asteroids. Scientists have been trying to determine the origin of these ...

Sep 26, 2012
4.4 / 5 (5) 7 | with audio podcast