New research suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for photosynthesis.

Here are a few of the more common meanings of the color purple, according to Morris and Leno. Leno says purple embodies a sense of adventure and reflects an upbeat energy. This can also spill into the ...

In 2020, archaeologists began excavating a necropolis near an early Christian church in Autun, France. They found 230 graves ...

A tour guide in the United Kingdom was confronted with something both rare and fantastical when he stumbled upon a 3-foot-long purple footprint pressed in coastal clay, a photo shows. It was clearly a ...