Space History Photo: Demonstration of Plum Brook's reactor core
Plum Brook's reactor core
Credit: NASA.

In this historic photo from the U.S. space agency is pictured the Plum Brook reactor's core, as demonstrated by the manufacturer prior to installation in the reactor pressure tank.

For more information browse the Plum Brook Facility Page.

Each weekday, SPACE.com looks back at the history of spaceflight through photos (archive).