Researchers have found that Earth’s first oceans may not have been blue at all like today. Instead, they may have gleamed in shades of green for billions of years. Although Earth formed about 4. ...

Duke researchers used more than two decades' worth of satellite data collected by a NASA instrument that scans the globe ...

In all, color experts estimate there are about 300 shades of green in nature ... its own food — and what makes green plants essential for life on Earth. ExploreLate summer is the season of ...