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 ...
New research reveals chemical secrets of Earth’s crust 4.5 billion years ago
The study also provides a new approach to solving one of the biggest enduring scientific mysteries: when did plate tectonics ...
Earth takes on ‘eyeball’ vibes from space
Pettit posted his striking footage on social media on Tuesday. The American astronaut used a wide-angle lens to get the ...
Daily Galaxy on MSN1mon
Earth’s Oceans Were Once Green—And They Might Be Turning Green Again
For most of human history, Earth has been known as the “Pale Blue Dot ... But for billions of years before that, our planet’s ...
Natural History Museum%2c London1y
Planet Earth
A distinctive blue and green image of Earth reveals our planet's most remarkable features. At 4.54 billion years old, our home world is a venerable object. But it was only with the arrival of the ...
Interesting Engineering on MSN7d
Could alien oceans be green: Earth’s past may hold the key to finding life elsewhere
Researchers have found that Earth’s first oceans may not have been blue at all like today. Instead, they may have gleamed in ...
As spring equinox nears, look for the northern lights: We explain why
As the spring equinox approaches, northern lights hunters will scour the skies for breathtaking displays of color.