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 ...
Business Today1mon
'Earth was purple, not green': The shocking truth about our planet’s original color
Before plants ruled, Earth may have glowed violet. The first life forms used retinal instead of chlorophyll, absorbing green light and reflecting red and blue—turning the planet an eerie purple.
Live Science26d
Earth: Facts about the Blue Planet
Earth is our home planet, and it's the only place in the universe where we know for certain that life exists. Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished ...
National Geographic news4y
Planet Earth, explained
Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...