Cover Story

Next-generation search and rescue

By Jan Tegler

November 2018

Managers of the international, satellite-aided search-and-rescue network have plans to make it faster and more accurate, knowing that they must do so without jeopardizing the service’s famous reliability. Meanwhile, a host of separate commercial SAR services are on the rise, welcomed by consumers for their 21st-century features, but greeted with words of caution by some experts.
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Engineering Notebook

Navigating without the “surly bonds”

By Amanda Miller

November 2018

Spacecraft in deep space must exchange signals with ground stations so that their owners know where they are. That approach is not going to work if humanity sends swarms of spacecraft to the moon.


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