Remote sensing

Optical sensor drones fly into danger

Powered predominantly by lidar, plus spectroscopy and visual-wavelength imaging, Andy Extance discovers unmanned aerial vehicles can safely survey hazardous environments

The dividend of the spectrum

Imaging spectroscopy offers a powerful way to understand this world and others, and optical innovations are enhancing its capabilities, finds Andy Extance

Analysing the atmosphere

Jessica Rowbury looks at the development of an analytical space system that could, in the future, be used to ensure countries comply to climate action plans

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