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Monday, August 15, 2022
Home This is an aerial photograph of a forest in Connecticut. (Katharine Johnson) This is an aerial photograph of a forest in Connecticut. (Katharine Johnson)

This is an aerial photograph of a forest in Connecticut. (Katharine Johnson)

This is an aerial photograph of a forest in Connecticut. (Katharine Johnson)

This is an aerial photograph of a forest in Connecticut. (Katharine Johnson)

The Phoenix Mars Lander used a lidar device built by Teledyne Optech to scan the Martian atmosphere in 2008. The resulting data showed ice crystals precipitating that could only have been water-based — in other words, snow. (NASA)
This bare-earth lidar image of a forest in Connecticut gives a view beneath the overgrown vegetation, where there are remnants of stone walls, building foundations, abandoned roads and what was once cleared farm land. Move the slider back and forth to see how lidar scans reveal distinctive features hidden beneath ground cover. (Katharine Johnson)