Item: Made in space - The first space product.
Size: 20.2 x 17.7 x 2.2 cm.Description: These polystyrene spheres were the the first true product made in space. They were created on-board STS-6 as the result of an experiment developed by Lehigh University to produce a Standard Reference Material used in calibrating particle size measuring instruments (for example, optical and electron microscopes). The spheres are so small - 10 micrometers in diameter - that 18000 could fit on the head of a pin. The beads were first offered to the public in 1985. Edition: Number CM015. It comes with an information sheet titled "Made in space aboard the Space Shuttle Challenger".
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