Scientists have discovered evidence that Earth's oceans were once green, hinting that this could be a marker of early life, ...

Creamery White, shown on the ceiling over an atmospheric blue wall, is a pale ivory shade that works in any space. "It's a versatile complement to any earth tone color," Tharp says. "It has a ...

Keep reading to learn more about Earth's different layers, its atmosphere, and what makes the "blue planet" unique. Earth is made out of different layers, and those layers get hotter and more ...