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sahara-dustplume-nasa-300
Blogs | Jul 28, 2014

Iron from Sahara dust helps fertilize Atlantic Ocean

Some 71% to 87% of the iron in North Atlantic seawater may have originated in dust from the Sahara desert.

Image credit Chris Poulsen, National Drought Mitigation Center/University of Nebraska-Lincoln
Science Wire | Jul 25, 2014

See which parts of the U.S. are losing groundwater

This map shows the amount of water stored in underground aquifers in the U.S. on July 7, 2014, in contrast to the average from 1948 to 2009.

Anticrepuscular rays by Shreenivasan Manievannan
FAQs | Photos | Jul 25, 2014

How to see anticrepuscular rays

Next time you see crepuscular rays or sunrays extending from the horizon … turn around. You might catch a glimpse of elusive anticrepuscular rays.

Hurricane Mitch, 1998
Science Wire | Jul 25, 2014

Nature’s roadblock to accurate seasonal hurricane forecasts

Nature itself puts up a roadblock to hurricane prediction – minor variations in the atmosphere – too small for seasonal forecast models to capture.

Screen Shot 2014-07-25 at 9.10.00 AM
Science Wire | Jul 25, 2014

Video: Joshua Tree nights

Shot in Joshua Tree National Park in California. Relax … and enjoy the night sky.

Via Aquaviews.net
FAQs | Jul 25, 2014

Can sharks smile? Do they even feel happy?

Dogs, monkeys and dolphins all show expressions akin to human smiles. But in sharks and other fish, the parts of the brain related to feelings are less developed.

june-2014-global-temps-cp
Science Wire | Jul 23, 2014

Record high global temp in June 2014 follows record warmth in May

The last below-average global temperature for June was in 1976 and the last below-average global temperature for any month was February 1985.

Image Credit: Michelle's blue planet
Blogs | Jul 22, 2014

Lifeform of the week: Sea stars

You call them starfish? They’re brilliant by any name.

yellowstone-midway-geyser-basin-nps-300
Blogs | Jul 22, 2014

Reservoir of molten rock under Yellowstone is 2.5 times bigger than thought

If the Yellowstone supervolcano were to erupt today, it would have major, perhaps catastrophic, consequences.

Photo: Ailee Bennett Farey
Blogs | Photos | Jul 22, 2014

At twilight … 15 best photos

“Love prefers twilight to daylight”
- Oliver Wendall Holmes