Nasa’s Apollo-Soyuz pocket calculator reached the Smithsonian 37 years after its 1975 mission

The Apollo-Soyuz mission featured a remarkable pocket-sized Hewlett-Packard calculator, designed to serve as a safeguard for critical navigational calculations.

Now housed at the Smithsonian's National Air and Space Museum, this innovative device holds the title of the first magnetic card programmable handheld scientific calculator.

It stands as a testament to the early integration of portable technology in the exploration of outer space.