An official website of the United States Government 
Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( lock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Photos

Snapshots of what’s happening in the Defense Department.

Scientists and others supporting the National Science Foundation research mission in Greenland stack their supplies on a waiting sled at the North Greenland Eemian ice drilling site, July 28, 2010. “NEEM” is an international ice core research project aimed at retrieving an ice core from northwestern Greenland.

Scientists and others supporting the National Science Foundation research mission in Greenland stack their supplies on a waiting sled at the North Greenland Eemian ice drilling site, July 28, 2010. “NEEM” is an international ice core research project aimed at retrieving an ice core from northwestern Greenland.

Scientists and others supporting the National Science Foundation research mission in Greenland stack their supplies on a waiting sled at the North Greenland Eemian ice drilling site, July 28, 2010. “NEEM” is an international ice core research project aimed at retrieving an ice core from northwestern Greenland.

Photo Gallery