Image: Signs of ships in the clouds

Ships churning through the Atlantic Ocean produced this patchwork of bright, criss-crossing cloud trails off the coast of Portugal and Spain. The narrow clouds, known as ship tracks, form when water vapor condenses around ...

Fine-particulate pollution: can we trust microsensor readings?

Last May, Paris City Hall launched "Pollutrack", a fleet of micro-sensors placed on the roofs of vehicles traveling throughout the capital to measure the level of fine particles present in the air in real time. A year early, ...

Image: Smoke obscures much of the Pacific Northwest

The Suomi NPP satellite's Visible Infrared Imaging Radiometer Suite (VIIRS) instrument captured a look at the smoke obscuring much of the Pacific Northwest on September 05, 2017. Due to the huge number of wildfires that ...

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