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.
Vice President Biden, Sec. Salazar to Deliver Remarks at 9/11 Observance at Flight 93 National Memorial
Last edited 4/27/2016
SHANKSVILLE, PA. – Secretary of the Interior Ken Salazar will join Vice President Joe Biden on Tuesday, September 11 to deliver the keynote remarks at the annual September 11th observance at the Flight 93 National Memorial in Shanksville, PA.
The public is invited and encouraged to attend the September 11 observance, which begins at 9:30 a.m. on Tuesday, September 11 at the Memorial Plaza. Visitors are advised to arrive at least two hours early to park and get through security. The site will open at 7:00 a.m. No backpacks or large bags are permitted. There will be no seating available for the approximately 30-minute ceremony, although guests are permitted to bring their own chairs.
At 10:03 a.m. – the moment Flight 93 crashed – the names of the passengers and crew members will be read and Bells of Remembrance will be rung by members of the Families of Flight 93 and community members who assisted in the aftermath of 9/11. The ceremony will also include a wreath laying at the Wall of Names.
About the Memorial:
Flight 93 National Memorial is a tribute to the passengers and crew of United Flight 93 and is a place to explore and discover their inspiring story of courage and hope. A 3.5 mile scenic drive leads visitors from the entrance at US Route 30 to the Memorial Plaza at the crash site where visitors may view panels in an outdoor exhibit area and learn more through cell phone tours; talk with Park Rangers and volunteer Ambassadors; participate in interpretive programs; view the field where Flight 93 crashed, which is the final resting place of the passengers and crew; and walk along the Wall of Names.