The blue color of the sky is explained by the diffusion of light by the air molecules contained in the

It was Newton, at the age of 23, who discovered in 1666 that the light of the sun was made

Finally, we can define life, not organically but from a spiritual point of view, as was simulated by some philosophical

This organization is usually governed by a genetic program, a series of instructions for carrying out metabolic reactions essential to

Conversely, a mule is alive but unable to have offspring. A computer virus can multiply by infecting programs like the

To understand what we mean and before searching for the origins of life on Earth and elsewhere in the universe,

Apart from optical telescopes equipped with their detectors and other spectrographs, to carry out their research, astronomers also need theoretical