Geophysical Research Letters

Clays on Mars: More plentiful than expected

(Phys.org)—A new study co-authored by the Georgia Institute of Technology indicates that clay minerals, rocks that usually form when water is present for long periods of time, cover a larger portion of ...

Dec 20, 2012
4.6 / 5 (5) 0 | with audio podcast

What goes down must come back up

(Phys.org)—For most of the past two decades, the NASA and European Topex/Poseidon, Jason-1 and Jason-2 satellites have tracked the gradual rise of the world's ocean in response to global warming. In August ...

Nov 20, 2012
4.2 / 5 (10) 26 | with audio podcast

Not-so-permanent permafrost

As much as 44 billion tons of nitrogen and 850 billion tons of carbon stored in arctic permafrost, or frozen ground, could be released into the environment as the region begins to thaw over the next century as a result of ...

Oct 29, 2012
4 / 5 (16) 15 | with audio podcast

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