The Earth has a different appearance from the other planets in the Solar System. The world we orbit has a blue color, if we see it from space, so a team of scientists explains this phenomenon that, contrary to what many may think, does not only have to do with water.
If we know Mars as the “red planet”, Earth could easily be the “blue world”. The development of life as we know it is only recorded in this rocky body of the Solar System. Scientists who have detected more than 5 thousand exoplanets have not been fortunate enough to find something like it.
According to a review of It’s sciencethe Earth looks blue from space due to a phenomenon called Rayleigh scattering. Sunlight is a mixture of all the colors of the rainbow, each with a different wavelength. Short-wavelength light, such as blue, scatters more easily than long-wavelength light, such as red.
When sunlight reaches the Earth’s atmosphere, air molecules scatter it in all directions. Blue light scatters more than red light, so most of the light that reaches our eyes is blue.
This is what makes the sky look blue during the day. At night, the sky appears black because there is no sunlight for air molecules to scatter.
Water also contributes to Earth’s blue color from space. The vital liquid absorbs red light, making the ocean appear bluish. Vegetation also contributes to the blue color, as leaves absorb red light and reflect blue light.