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NASA’s Terra satellite passed over the Southern Pacific Ocean and captured a visible image of extra-tropical cyclone Harold.

The rich mosaic of reeds, ponds, and meadows of the Ili River Delta offer habitat for hundreds of species.

In a new study, published in the journal Nature, Michigan State University scientists show how plant genes select which microbes get to live inside their leaves in order to stay healthy.

Over the past several weeks, NASA satellite measurements have revealed significant reductions in air pollution over the major metropolitan areas of the Northeast United States.

Abnormal levels of stress hormones such as adrenaline and cortisol are linked to a variety of mental health disorders, including depression and posttraumatic stress disorder (PTSD).