THE Earth’s ocean could one day turn purple – and scientists say it used to be a totally different colour. When observed from ...

Earth's oceans could one day turn purple. Nearly three fourths of Earth is covered by oceans, making the planet look like a ...

Several miles below the surface of the Pacific Ocean, scientists aboard a submersible scanned the shadowy seafloor for signs of life. Soon enough, a “long” purple sea creature caught their ...

Its depths replicate ocean conditions billions of years ago. At about 18m there is a 1m dark purple layer of toxic bacteria containing high concentrations of hydrogen sulphide. This toxic layer ...

For example, high volcanic activity and low oxygen levels in the atmosphere could lead to increased sulphur levels - meaning more purple sulphur bacteria and therefore turning the ocean purple.