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In this view looking up in the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida, a heavy-lift crane lowers the second half of the D-level work platforms, D north, for NASA’s Space Launch System rocket.

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Photomicrograph of a parasite. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

The exhaust plume from space shuttle Atlantis is seen as it launches from pad 39A on Friday, July 8, 2011, at NASA's Kennedy Space Center in Cape Canaveral, Fla. Digitally enhanced by rawpixel

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Murals, Louisville Murals-Post Office Rail Car, by Frank Weathers Long at the Gene Snyder U.S Courthouse & Custom House, Louisville, Kentucky (2011) by Carol M. Highsmith. Original image from Library of Congress.

Deer in the tall grass below Devil's Tower National Monument in Crook County, Wyoming. Original image from Carol M. Highsmith’s America, Library of Congress collection.

As dusk approaches, balloons land at the National Balloon Classic, a hot air balloon exhibition in Indianola, Iowa, a town near the state capital of Des Moines. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Bayou La Batre is a fishing village with a seafood-processing harbor for fishing boats and shrimp boats. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Work began on March 11, 2010 to replace a set of elevation bearings on the giant Mars antenna at NASA's Deep Space Network complex in Goldstone, Calif.

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Astronaut Edwin E. Aldrin Jr., pilot for the Gemini-12 spaceflight, prepares to take a rest position during underwater zero-gravity training. Oct 29th, 1966.

Discovery lifts off from Launch Pad 39A at NASA's Kennedy Space Center in Florida beginning its final flight, the STS-133 mission, to the International Space Station, Feb 24.

An expanse of ocean is seen on the horizon as Freedom Star, one of NASA's solid rocket booster retrieval ships, set sail to be in position in the Atlantic ocean to recover the spent boosters after space shuttle Discovery's STS-133 launch.

Viewed from the Banana River Viewing Site at NASA's Kennedy Space Center in Florida, space shuttle Discovery arcs through a cloud-brushed sky lighted by the trail of fire after launch on the STS-128 mission.

A Boeing Delta II expendable launch vehicle lifts off with NASA's Mars Climate Orbiter on Dec. 11, 1998, from Launch Complex 17A, Cape Canaveral Air Station.

A view of lower Manhattan a month before 9/11. Original image from Carol M. Highsmith’s America, Library of Congress collection.

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NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) was airborne for almost two hours during its first check flight at Waco, Texas on April 26, 2007.

Air Force HC-130 rescue tanker flies over the target area off Florida's central east coast during a rescue training exercise, known as Mode VIII.

With more than 23 times the power output of the Hoover Dam, NASA’s Ares I-X test rocket soars into blue skies above Launch Pad 39B at NASA's Kennedy Space Center in Florida.

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Discovery lifts off from Launch Pad 39A at NASA's Kennedy Space Center in Florida beginning its final flight, the STS-133 mission, to the International Space Station, Feb 24.

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Orbital Sciences L-1011 carrier aircraft carrying IRIS solar observatory takes off from Vandenberg Air Force Base, Calif., Aug. 7, 2017.

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The Orbiter 101 "Enterprise" separates from the NASA 747 carrier aircraft S77-28931 to begin its first "tailcone-off" unpowered flight over desert and mountains of Southern California. Oct 12th 1977.

Interior tools and milling equipment at the Bale Grist Mill, now a California Historic Park. Original image from Carol M. Highsmith’s America, Library of Congress collection.

An oceangoing container ship plies the busy Savannah River in Savannah, Georgia. Original image from Carol M. Highsmith’s America, Library of Congress collection.

Fat and sassy prairie dogs on the grounds of Devil's Tower National Monument in Crook County, Wyoming. Original image from Carol M. Highsmith’s America, Library of Congress collection.

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Space shuttle Atlantis, attached to its bright-orange external fuel tank and twin solid rocket boosters on Launch Pad 39A at NASA's Kennedy Space Center in Florida.

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A Nepalese Mother and Her Infant. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

First floor lobby, Theodore Levin United States Courthouse, Detroit Federal Building, Detroit, Michigan (2010) by Carol M. Highsmith. Original image from Library of Congress.

Guntersville is a city in Marshall County, Alabama, United States and is included in the Huntsville-Decatur Combined Statistical Area. Original image from Carol M. Highsmith’s America, Library of Congress collection.

The cavernous expanse of the Dryden Aircraft Operations Facility in Palmdale, Calif., now houses NASA's DC-8 science laboratory and SOFIA infrared observatory. January 17, 2008.

Domestic Training Course for healthcare workers. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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NASA'S SOFIA infrared observatory 747SP (front) and DC-8 flying laboratory (rear) housed at the Dryden Aircraft Operations Facility in Palmdale, Calif, January 17, 2008.

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The space shuttle Atlantis is seen shortly after the rotating service structure (RSS) was rolled back at launch pad 39a, Thursday, July 7, 2011 at the NASA Kennedy Space Center in Cape Canaveral, Fla. Digitally enhanced by rawpixel

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A photograph of the Apollo 12 lunar landing site taken during the extravehicular activity (EVA) of astronauts Charles Conrad Jr., commander; and Alan L. Bean, lunar module pilot.

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A scientist implementing molecular testing. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Domestic Training Course for healthcare workers. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Space shuttle Endeavour lands in darkness on Runway 15 at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida after 14 days in space, completing the 5.7-million-mile STS-130 mission to the International Space Station on orbit 217.

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Xenon lights illuminate space shuttle Discovery as it makes its nighttime trek, known as rollout, from the Vehicle Assembly Building to Launch Pad 39A at NASA's Kennedy Space Center in Florida.

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The orbiter drag chute deploys after the Space Shuttle orbiter Atlantis lands on Runway 15 of the KSC Shuttle Landing Facility at the conclusion of the nearly 11-day STS-86 mission, Oct. 6, 1997.

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Tthe Soyuz launch pad shortly before the Soyuz TMA-12M spacecraft is rolled out by train to the launch pad at the Baikonur Cosmodrome, Kazakhstan.

A medical illustration of drug–resistant, Streptococcus pneumoniae bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Man evaluating mosquito nets to prevent Malaria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Mountain-sunset view from Telluride, once a mining boomtown and now a popular skiing destination in Colorado - Original image from Carol M. Highsmith’s America, Library of Congress collection.

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Tropical Storm Anna taken from the International Space Station displays the view looking south-southeastward from western Virginia towards storm about 200 miles east of Savannah, Georgia, Bahamas and Florida in the distance. Aug 5th, 2015.

Man properly tending his garden. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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African dwarf frog, Hymenochirus boettgeri. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A technician testing possible sites of transmission. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Preparations are under way at Space Launch Complex 41 to launch the United Launch Alliance Atlas V-551 launch vehicle carrying NASA's Juno spacecraft.

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C-band, 3 megawatt radar with a 50-foot dish antenna recently installed on north Kennedy Space Center. It is one of the largest of its kind in the world.

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NASA's Mars Science Laboratory (MSL) rover, known as Curiosity, arrives at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida aboard an Air Force C-17 cargo plane.

A doctor performing a surgical procedure on a canine patient. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A supply ship. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Canal Street, New Orleans. Original image from Carol M. Highsmith’s America, Library of Congress collection.

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Earth's moon celestial body moonlight

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Earth's moon celestial body moonlight

Atlantis nears touchdown for the final time on Runway 15 at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida, 21 July 2011.

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A 250-ton crane is used to lower the second half of the K-level work platforms for NASA’s Space Launch System (SLS) rocket into High Bay 3 inside the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida.

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Convair F-106B Delta Dart rolls to the right to reveal the two research engines installed under its wings by the National Aeronautics and Space Administration (NASA) Lewis Research Center.

A medical illustration of drug–resistant, Mycoplasma genitalium bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A medical illustration of drug–resistant, Mycoplasma genitalium bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A scientist examining the results of a hemagglutinin inhibition (HI) test. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A doctor performing a surgical procedure on a canine patient. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A scientist testing a sample suspected of containing a bacterial toxin. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A medical illustration of drug–resistant, Streptococcus pneumoniae bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Coming in from the southeast, space shuttle Atlantis belly is visible in a crystal-clear blue sky as it approaches Runway 33 at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida.

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The International Space Station's Canadarm2 unberths the unpiloted Japan Aerospace Exploration Agency (JAXA) H-II Transfer Vehicle (HTV-3), filled with trash and unneeded items, in preparation for its release from the station. Sept 12th, 2012.

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A medical illustration of drug–resistant, nontyphoidal, Salmonella sp. bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A 3D image of a group of Gram–positive, Corynebacterium diphtheriae, bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A medical illustration of vancomycin–resistant, Enterococci sp. bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A 3D image of a group of anaerobic, spore-forming, Clostridium sp. organisms. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A scientist holding a culture test plate. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Rolling irrigation sprinkler at work along the road carrying U.S. Highways 62-180 near the New Mexico border in Hudspeth County, Texas. Original image from Carol M. Highsmith’s America, Library of Congress collection.

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Influenza virus experimentation with eggs. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A 1000X photomicrograph magnification of numerous, rod-shaped, Gram–negative, Yersinia pestis bacilli. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Raccoon, Procyon lotor, a vector in the transmission of rabies to humans and other animals. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A scientist preparing samples for mass spectrometry in order to determine the presence of a bacterial toxin. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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A Durango & Silverton Narrow-Guage Scenic Railroad train, pulled by a vintage steam locomotive, navigates a San Juan Mountains precipice in Las Animas County, Colorado. Original image from Carol M. Highsmith’s America, Library of Congress collection.

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A scientist holding up a glass slide used for a run on a sequencing machine. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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Xenon lights help lead space shuttle Endeavour home to NASA's Kennedy Space Center in Florida. Endeavour landed for the final time on the Shuttle Landing Facility's Runway 15, marking the 24th night landing of NASA's Space Shuttle Program.

A healthcare worker donning a pair of protective goggles and protective equipment. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

Under the unflinching summer sun, workers at NASA's Deep Space Network complex in Goldstone, Calif., use a crane to lift a runner segment that is part of major surgery on a giant, 70-meter-wide antenna.

A medical illustration of vancomycin–resistant, Enterococci sp. bacteria. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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This is not a fire in the distance, near the settlement of Ganado on Navajo Nation land in far northeast Arizona. It’s a remarkable sunset. Original image from Carol M. Highsmith’s America, Library of Congress collection.

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Space shuttle Atlantis, attached to its bright-orange external fuel tank and twin solid rocket boosters on Launch Pad 39A at NASA's Kennedy Space Center in Florida.

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Space shuttle Atlantis touches down at NASA's Kennedy Space Center Shuttle Landing Facility completing its 13-day mission to the International Space Station and the final flight of the Space Shuttle Program, July 21, 2011, in Cape Canaveral, Fla.

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A United Launch Alliance Delta IV Heavy common booster core is about to be offloaded from the company's Mariner ship at Port Canaveral in Florida.

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New renovated NASA Ames Research Center 12 foot Pressure Wind Tunnel, seen here is the single stage, 20 blade axial-flow fan powered by a 15,000 horsepower variable speed, synchronous electric motor that provides airflow in the closed-return, variable-density tunnel.

The normal right eye of a boy whose left eye was inadvertently inoculated with vaccinia virus. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A 3D graphical representation of a number of Rotavirus virions, set against a black background. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A scientist demonstrating a lab technique called “candling,” which determines if the egg is suitable for use in growing flu viruses. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

A scientist studying new methods for detecting foodborne bacteria directly from a patient sample. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.

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With landing gear down, space shuttle Endeavour nears touchdown on Runway 15 at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida after 14 days in space, completing the 5.7-million-mile STS-130 mission on orbit 217 on Feb. 21, 2010.

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