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The Lewis and Clark National Historic Trail from Space
To commemorate the 50th anniversary of the National Trails System and the 60th anniversary of NASA, the National Park Service, U.S. Geological Survey, and NASA have assembled satellite images highlighting sites along the route taken by Lewis and Clark and the Corps of Discovery.
Adopt a Pixel for Science
The newest feature in NASA’s free GLOBE Observer app lets you photograph the landscape, identify land cover, and match your observations to satellite data to help NASA create more detailed satellite-based global maps. 
TRAPPIST-1 VR and "NASA Selfies"
Created to celebrate the 15th anniversary of the launch of NASA's Spitzer Space Telescope, these two new digital products from NASA have Spitzer's incredible discoveries and amazing images at their center.
#100KOrbits
What has traveled 2.5 billion miles without leaving the 705 kilometers around Earth? Terra, the flagship Earth observing satellite is celebrating 100,000 orbits around Earth.