These two natural color images from NASA's Cassini spacecraft show the changing appearance of Saturn's north polar region between 2012 and 2016.
The last time Earth experienced both ice sheets and carbon dioxide levels within the range predicted for this century was a period of major sea level rise, melting ice sheets and upheaval of tropical forests.
Multicore fibers (MCF) have attracted much attention in the fields of telecommunications, fiber lasers and medical endoscopes. MCF-based optical imaging techniques, which use a fiber bundle (each fiber acting like a discrete ...
Federal forecasters predict this winter may paint the U.S. in stripes of different weather: Warmer and drier than normal in the south, and colder and wetter than usual in the far north.
Pacific walrus are beginning to come ashore near a remote community on Alaska's northwest coast in what's become an annual marine mammal phenomenon caused by a warming climate.