Waves crash over the Kulluk oil rig, which washed aground on Sitkalidak Island, Alaska. Officials say aircraft have not spotted any signs of a fuel leak from the rig, which reportedly does not contain crude oil. PA3 Jon Klingenberg/Coast Guard hide caption

toggle caption PA3 Jon Klingenberg/Coast Guard

Scientists at the Large Hadron Collider announced the discovery of the Higgs boson on July 4, the long-sought building block of the universe. This image shows a computer-simulation of data from the collider. Barcroft Media/Landov hide caption

toggle caption Barcroft Media/Landov

Researchers at the U.S. Geological Survey National Wildlife Health Center in Madison, Wis., use eggs to see if the Asian strain of the H5N1 bird flu virus has entered the U.S. in this photo from 2006. Andy Manis/AP hide caption

toggle caption Andy Manis/AP

This satellite image from Oct. 28 shows Hurricane Sandy in the Atlantic Ocean before making landfall. NASA via Getty Images hide caption

toggle caption NASA via Getty Images

The bubbles in champagne tickle the tongue and transfer wonderful aromas to the nose. iStockphoto.com hide caption

toggle caption iStockphoto.com

Mosquitoes like this one can carry the virus that causes dengue fever, which may become a bigger problem in some regions as biodiversity is lost. James Gathany/CDC Public Health Image Library hide caption

toggle caption James Gathany/CDC Public Health Image Library

Photographer Freya Najade journeys into the weird sci-fi world of Europe's agricultural production. In one cow-milking facility she visited, "two people are needed to milk twice a day 300 cows," she writes. Freya Najade hide caption

toggle caption Freya Najade

NPR thanks our sponsors

Become an NPR sponsor