( Such an event was underway at the time of this photo.) Both Uyuni and Coipasa are remnants of saline paleolakes that dried up thousands of years ago. But during Bolivia’s rainy season, rivers can carry sediment rich in microbes and dark-colored volcanic minerals onto the flats. The salars are typically a bright white color when viewed from orbit. Domes and lava flows appear on the eastern side of Tunupa, and the volcano is adjacent to other eroded volcanic fields and craters, including Jayu Khota and Titivilla. The flanks of the volcano’s cone are incised by valleys that were eroded by ancient glaciers and stream flows. Last active about 1.4 million years ago, Tunupa is now considered dormant. The volcano is a composite cone-a large, complex volcano that is often covered by lava flows, pyroclastic and mudflow deposits, and domes. Tunupa Volcano is located at the center of the Southern Altiplano, or the Andean Plateau, and rises as high as 5.3 kilometers (3.3 miles) in elevation. These salt flats have variable sediment cover and microbial populations, leading to darker and lighter surface hues across their areas. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth. Caption by Alex Stoken, Jacobs, JETS Contract at NASA-JSC.An astronaut onboard the International Space Station (ISS) shot this photograph of the Tunupa Volcano, which is situated on a peninsula between two of Bolivia’s largest salt flats, Salar de Uyuni and Salar de Coipasa. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. The image was taken by a member of the Expedition 64 crew. The image has been cropped and enhanced to improve contrast, and lens artifacts have been removed. history and achievements.Īstronaut photograph ISS064-E-40657 was acquired on March 3, 2021, with a Nikon D5 digital camera using a 1200 millimeter focal length and is provided by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center. The next hundred years saw the construction of additional monuments, memorials, and museums that commemorate U.S. At the turn of the 20th century, the Washington Monument, seen here casting a long shadow, was the only monument completed within the National Mall. It was not until the early 1900s that the National Mall and Tidal Basin had enough monuments and museums that it began to take the form that appears in the image. L‘Enfant left a mile long stretch west of the Capitol as a grand avenue for the public interest. The most famous of these avenues is a direct line between two branches of government-Pennsylvania Avenue physically links the White House with the Capitol. These diagonals, named after the first states, are the main thoroughfares. Wide, diagonal avenues radiate from the Capitol outward through the city, meeting with other diagonals to form parks and public spaces. This was the architects’ starting point, and the rest of the city was built in quadrants defined by axes extending in cardinal directions from this “center” of American government. government and as a tribute to the history of the nation.įrom above, the city layout draws the eye to the Capitol. Nestled at the confluence of the Potomac and Anacostia rivers, today the city serves as both the seat of the U.S. The near-nadir, high resolution photo offers a view of the city’s layout that its architects, Peter L‘Enfant and Andrew Ellicott, could only imagine when they drew up plans for the District of Columbia in the 1790s. The original layout and design of Washington, D.C., comes to life in this springtime photograph taken by an astronaut on the International Space Station. Wide, diagonal avenues radiate from the Capitol building in Washington, D.C., outward through the city.
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