Mercury's surface in "enhanced color," a color scheme created to emphasize color differences. This is not what Mercury would look like to the human eye, but by applying mathematical analysis to images, color differences can be accentuated beyond those visible to a person.
Mount Rushmore National Memorial under construction.
The workers had to endure conditions that varied from blazing hot to bitterly cold and windy. Each day they climbed 700 stairs to the top of the mountain to punch-in on the time clock. Then 3/8 inch thick steel cables lowered them over the front of the 500-foot face of the mountain in a "bosun chair." Despite the dangers, no one was killed during the project.
Otters in Glacier Bay National Park and Preserve, Alaska.
The sea otter population of Glacier Bay has increased dramatically in the past 20 years. Ecologists consider sea otters a keystone species here. Otters consume vast quantities of clams, urchins, crabs, and other invertebrates and their presence creates ripples through the ecosystem. NPS photo.
Every day someone like you becomes a wildland wildfire fighter, a teacher, a trail-builder, a museum curator, or a park ranger. Discover your opportunities in national parks. Come to play. Come to learn. Come to serve. Develop your environmental leadership skills. Find a job. Be the next generation to preserve and protect these great places.
With more than 80% of Americans living in urban areas, urban parks are more important than ever. The father of American landscape architecture, Frederick Law Olmsted, said of urban parks:
It is one great purpose of the Park to supply to the hundreds of thousands of tired workers, who have no opportunity to spend their summers in the country, a specimen of God's handiwork that shall be to them, inexpensively, what a month or two in the White Mountains or the Adirondacks is, at great cost, to those in easier circumstances.
Sally Jewell Sworn in as Secretary of the Interior
Office of the Secretary
Retired Supreme Court Justice Sandra Day O'Connor and Interior Secretary Sally Jewell Photo: Tami A. Heilemann - Office of Communications
Retired Supreme Court Justice Sandra Day O'Connor, Interior Solicitor Hilary Tompkins, and Interior Secretary Sally Jewell Photo: Tami A. Heilemann - Office of Communications
Secretary of the Interior Sally Jewell
Sally Jewell was sworn in as the 51st Secretary of the Interior on April 12, 2013.
As Secretary of the Interior, Jewell leads an agency with more than 70,000 employees. Interior serves as steward for approximately 20 percent of the nation's lands, including national parks, national wildlife refuges, and other public lands; oversees the responsible development of conventional and renewable energy supplies on public lands and waters; is the largest supplier and manager of water in the 17 Western states; and upholds trust responsibilities to the 566 federally recognized American Indian tribes and Alaska Natives.