First Breathtaking Images from Europe's New Sentinel Satellite

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. » 4/16/14 5:06pm Yesterday 5:06pm

How do "Citizen Scientists" stack up against the experts?

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. » 8/20/13 10:39am 8/20/13 10:39am