These projected findings about depopulation in U.S. cities are shaped by a multitude of factors, including the decline of industry, lower birth rates and the impacts of climate change

Tardigrades are microscopic animals that can survive a host of conditions that are too extreme to ever occur on Earth—and scientists want to learn their secrets

Streams in Alaska are turning orange with iron and sulfuric acid. Scientists are trying to figure out why

Here is how a perfectly ordinary number captured the interest of sci-fi enthusiasts, geeks and mathematicians

This week’s cold snap across the U.S. will be one of “the most impressive Arctic outbreaks of this century,” one climate scientist says

Tiny clumps of cells show basic cognitive abilities, and some animals can remember things after losing their head