The 1950s historical photograph of the inside of an operating room suite during a surgical procedure. Original image sourced… Free Image from public domain license 
Front 3/4 view of the Avrocar. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Volunteers portraying astronauts are transported to ambulances as part of a Mode II-IV evacuation simulation exercise at NASA… Free Image from public domain license 
Russian Search and Rescue teams deploy by helicopter from Karaganda, Kazakhstan. Original from NASA . Digitally enhanced by… Free Image from public domain license 
Military soldiers boarding on aircraft for mission. A healthcare provider donning a pair of green latex gloves in order to… Free Image from public domain license 
Members of the Kennedy Space Center government-industry team rise from their consoles within the Launch Control Center to… Free Image from public domain license 
The KSC response team practices carrying an injured crew member to an Air Force HH-60 helicopter for transport to a local… Free Image from public domain license 
Operators test the National Aeronautics and Space Administration’s Plum Brook Reactor Facility systems. Original from… Free Image from public domain license 
Special Rescue Operations firefighters with NASA Fire Rescue Services at NASA’s Kennedy Space Center near Cape… Free Image from public domain license 
Special Rescue Operations firefighters with NASA Fire Rescue Services at NASA’s Kennedy Space Center near Cape… Free Image from public domain license 
Astronaut Alan B. Shepard Jr. is rescued by a U.S. Marine helicopter at the termination of his suborbital flight May 5, 1961.… Free Image from public domain license 
Copied paintings in one of the tombs from Monuments de l'Égypte et de la Nubie (1835–1845) by Jean… Free Image from public domain license 
Domestic Training Course for healthcare workers. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
A view inside the 55-foot high containment vessel of the National Aeronautics and Space Administration (NASA) Plum Brook… Free Image from public domain license 
Special Rescue Operations firefighters with NASA Fire Rescue Services at NASA’s Kennedy Space Center. Original from… Free Image from public domain license 
Young fans of the Colorado Rockies major-league baseball team wait and hope for player autographs at a Spring Training game… Free Image from public domain license 
Russian Search and Rescue helicopter teams wait to take off from Kustanay, Kazakhstan to support the Soyuz TMA-13M spacecraft… Free Image from public domain license 
Domestic Training Course for healthcare workers. Original image sourced from US Government department: Public Health Image… Free Image from public domain license 
Preparedness and Policy Coordination Team working with CDC’s New York Quarantine Station to react to an arriving… Free Image from public domain license 
A Mode II-IV evacuation simulation exercise at NASA Kennedy Space Center's Launch Pad 39A, which conducted by The Space… Free Image from public domain license 
STS-115 Mission Specialists Heidemarie Stefanyshyn-Piper (front) and Daniel Burbank head for the slidewire baskets on Launch… Free Image from public domain license 
A NASA Fire Rescue truck, which is part of the landing convoy at NASA's Kennedy Space Center in Florida, heads out toward… Free Image from public domain license 
DFRC F-16 Fleet and Support Crew 1997. Four different versions of the F-16: On the left and right sides are two F-16XLs. On… Free Image from public domain license 
Volunteers portraying injured astronauts loaded onto a helicopter as part of an emergency exit exercise at Launch Pad 39A at… Free Image from public domain license 
In a clean-room environment at Astrotech's payload processing facility in Titusville, Fla. technicians conduct an… Free Image from public domain license 
The Australian cricket from Un-Natural History Not Taught In Bored Schools, etc published by Simpkin, Marshall & Co. (1883).… Free Image from public domain license 
North American AJ-2 Savage used for Microgravity Flights, Sept 1960. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
James Webb Space Telescope Mirror Halfway Complete. Inside NASA's Goddard Space Flight Center's massive clean room in… Free Image from public domain license 
Technicians stow for launch solar array #2 for NASA Juno spacecraft. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Paintings copied from the tomb of Ramses IV (Maimonides) from Monuments de l'Égypte et de la Nubie (1835–1845)… Free Image from public domain license 
Tomb of Siphtha, Great Hall, Right Wall from Monuments de l'Égypte et de la Nubie (1835–1845) by Jean… Free Image from public domain license 
In the Convict Gang from The Calton Ballads... Twenty-Two Full-Page Illustrations from Drawings, etc published by J. Munro… Free Image from public domain license 
Four Dancing Women by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Angel Stadium of Anaheim (originally Anaheim Stadium and later Edison International Field of Anaheim) is a modern-style… Free Image from public domain license 
Technicians use an overhead crane to lower NASA Juno spacecraft onto a fueling stand where the spacecraft will be loaded with… Free Image from public domain license 
In the Payload Hazardous Service Facility, workers move the Stardust spacecraft on its workstand from the air lock to the… Free Image from public domain license 
Paintings executed in the tombs from Monuments de l'Égypte et de la Nubie (1835–1845) by Jean François… Free Image from public domain license 
Vintage golfers from Won at the Last Hole. A Golfing Romance, Etc published by Cassell & Co. (1893). Original from the… Free Image from public domain license 
Paintings executed in the tombs from Monuments de l'Égypte et de la Nubie (1835–1845) by Jean François… Free Image from public domain license 
Hall with four columns and East room of the same hall from Monuments de l'Égypte et de la Nubie (1835–1845) by… Free Image from public domain license 
Vintage golfers from Won at the Last Hole. A Golfing Romance, Etc published by Cassell & Co. (1893). Original from the… Free Image from public domain license