Billions of years ago, our planet did not have the deep blue oceans we admire today. Instead, they were actually […] ...

Earth tones remind us of the natural world, a delightful familiarity that's welcome in just about any room. In many ways, the ...

Then, depending on its ionic charge, it made the water appear brown, gray or green ... which would have made Earth look green from a distance. Over the green-ocean period, the researchers note ...

Brown earth soils are widespread in Britain, except in highland areas. Soil organisms, like earthworms, mix the materials together, merging the boundaries between the horizons. These soils are ...