A blue ball in a black field surrounded by white, tiny dots.

Science & Technology

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Space junk — debris from defunct satellites and other man-made items — is a growing problem. Wooden satellites, an idea spearheaded by astronaut and professor Takao Doi of Kyoto University, may be the solution.

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A computer-generated image representing space debris as could be seen from high Earth orbit. The two main debris fields are the ring of objects in geosynchronous Earth orbit (GEO) and the cloud of objects in low Earth orbit (LEO).

Takao Doi

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