ENGINEERS ASSEMBLE GIANT 3-D SPACE PUZZLE

Piece by piece a team of NASA researchers put together a huge composite and metal structure that looked a lot like high-tech tinkertoys on steroids.

The structural mechanics and concepts branch engineers are going back to the past to try to explore the future. Most of them were involved with large space structure research done at NASA's Langley Research Center from the 70s to the early 90s. Now they're dusting off some of the hardware to see if the concepts would work in the 21st century.

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