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Tropical Cyclone Cebile was still a powerful hurricane in the Southern Indian Ocean when NASA-NOAA's Suomi NPP satellite passed overhead and captured a visible image of the storm. 

When Arctic permafrost soil thaws, greenhouse gases are released into the atmosphere, but most of the carbon currently escaping from lakes in northern Alaska is relatively young, according to a new study led by researchers at the University of California, Irvine. Findings paint less dire climate picture, as ancient emissions are more harmful.

CU Boulder researchers have discovered a mechanism that explains the persistence of asymmetrical stellar clusters surrounding supermassive black holes in some galaxies and suggests that during post-galactic merger periods, orbiting stars could be flung into the black hole and destroyed at a rate of one per year.

Continental shelves are an increasing global sink for atmospheric carbon dioxide.

A new study finds polar bears in the wild have higher metabolic rates than previously thought, and as climate change alters their environment a growing number of bears are unable to catch enough prey to meet their energy needs.