Feature

Test time for optical comms

By Debra Werner

February/March 2021

Fiber might not have reached your neighborhood, but anyone who does business in space will need a wireless version in the cosmic neighborhood, and soon. After decades of experimentation, 2021 could become the long-sought pivotal year for optical communications in space, notwithstanding an early setback. Debra Werner tells the story.

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Engineering Notebook

Eye on laser fusion

By Keith Button

February/March 2021

Components made by laser powder bed fusion sometimes come off the printer with tiny voids trapped in the metal as it hardens. Researchers are on their way to fully determining the causes of these voids. Keith Button spoke to the researcher whose imaging technique has been key to the progress.

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