Here's why:
* Blue: The majority of Earth's surface is covered by oceans, which reflect the blue light from the sun.
* Green: The continents are covered in forests, grasslands, and other vegetation, which also reflect green light.
* Brown: Deserts, mountains, and other landmasses contribute to the brown tones.
* White: Clouds, snow, and ice reflect white light.
So, while Earth might look orange in some photographs, it's actually a vibrant mix of colors!