What Earth might look like to aliens, Scientists reveals

A team of scientist started with about 10,000 images of our planet taken by NASA's Deep Space Climate Observatory (DSCOVR) satellite, which sits at a gravitational balance point between Earth and the sun, allowing it to see only the daytime side of the planet.

According to a report in sciencemag.org, The images were taken at 10 specific wavelengths every 1 to 2 hours during 2016 and 2017.

The researchers reduced the images into a single brightness reading for each wavelength and analyzed the curves and compared them with the original images.

The researchers after going through the process figured out which parameters of the curves corresponded to land and cloud cover in the images and the parameter most closely related to land area, adjusted it for the 24-hour rotation of the Earth.