The small, dark, round spot in this solar close up is planet Mercury.
Astronomy Picture of the Day - Mercury in Silhouette
articles
Half of Piedmont Drinking Wells May Exceed NC’s Hexavalent Chromium Standards
A new study which combines measurements from nearly 1,400 drinking water wells across North Carolina estimates that more than half of the wells in the state’s central region contain levels of cancer-causing hexavalent chromium in excess of state safety standards.
The Many Meanders of the Juruá
Research indicates that a heavy sediment load might cause additional meandering in rivers.
Are Numbers of Species a True Measure of Ecosystem Health?
A great extinction is under way across most of the planet.
How Transit Scaling Shapes Our Cities
A new study conducted by researchers from the University of Sydney reveals public transport investments in large metropolitan areas reap a better return, with more passengers adopting public transport, than those in smaller cities.
Perovskite Solar Cells: Possible Aspects of High Efficiency Uncovered
Solar cells based on perovskites have reached enormously high efficiencies within a few years, only.
