Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work


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We charge a usage fee per photo if the photo is published, reproduced in a product or publicly exhibited. This is not a license in the legal sense. As a non-profit institution, we do not make any money providing these photographs. It is only by assessing usage fees that we are able to cover the cost of providing publication quality copies of our photos, preserving the photograph collection according to archival standards, and providing access to the collection by maintaining an online image database. The copyright holder may charge a fee in addition to our service fee.

Images are for use in educational projects only and must be used in a respectful manner.

Credit line: 
RCA News and Information, courtesy AIP Emilio Segrè Visual Archives, Physics Today Collection

NASA SPACE TWINS called Dynamics Explorer planned to be launched in side-by-side polar orbits in 1981 to study the interaction between such phenomena as the northern lights and radio disturbance and how this space energy determines weather on Earth. Dynamics Explorer A and B were designed for NASA by RCA Astro-Electronics, Princeton, New Jersey.

Photo date: 
circa 1979
TIROS (Television Infrared Observation Satellite)