Rain and snow for much of the eastern half of the country and the Pacific Northwest stays active through the weekend.
A look into when different portions of the country typically experience their coldest days of the winter season.
Officials airdropped more than 4,000 pounds of sweet potatoes and carrots to feed starving colonies of animals.
Another major winter storm producing rain, ice, and snow through the weekend.
The shift away from old coal electrical plants to cleaner-burning natural gas plants has been shown to provide substantial improvements in mortality and crop yields in a new study by Jennifer Burney of UC San Diego.
Over 10,000 feral camels killed as humans and animals suffer through Australia's worst drought in history.
A look into the science behind static electricity and why it becomes stronger during the winter season.
Strong winter storm to affect areas from the southern Plains to the Great Lakes and eastward through the weekend.
A look into what zodiacal light is and how to recognize it.