The evaporation ponds at the south end of the Dead Sea produce both sodium chloride and potassium salts. The pond size, and thus salt production, has expanded substantially in response to global demand for salts used in industrial processing.
The first satellite in the European Space Agency's new Earth-monitoring Sentinel mission is already sending photos home. The first photos are of land use in Belgium, flooding in Namibia, and glacial retreat and land cover monitoring in Antarctica.
Argentina's fertile agricultural region in Pampas is a patchwork of farm fields, with one notable exception. In the center of the image (and magnified inset) is a cypress and eucalyptus forest shaped into a guitar. This grove is tended by a farmer in memory of his wife.
Anybody can contribute to the progress of science! There are plenty of "Citizen Scientist" projects that let you help with scientific research. But one question lingers: How reliable are the results produced by non-experts? A new study provides some good news.