Earth’s oceans weren’t always blue, scientists say
But while lifeless during that time, the planet was already covered by vast oceans dotted with hydrothermal vent systems that ...
Daily Galaxy on MSN1mon
Earth’s Oceans Were Once Green—And They Might Be Turning Green Again
Earth’s oceans have remained blue for hundreds of millions of years, but scientists say that’s now changing. A 2019 study ...
Interesting Engineering on MSN9d
Could alien oceans be green: Earth’s past may hold the key to finding life elsewhere
Ancient oceans, which were heavy on iron, interacted differently with light wavelengths, retracting green light into the ...