Around the world, about thirty observatories have dedicated at least one telescope to the study of the Sun. Given the atmospheric turbulence, it is almost impossible to use instruments over…
Astrobiology
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Blue Sky and Red Sun
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The blue color of the sky is explained by the diffusion of light by the air molecules contained in the atmosphere. Most colors, red, orange and yellow, go through the…
The Rainbow and The Halo
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It was Newton, at the age of 23, who discovered in 1666 that the light of the sun was made up of a mixture of colors. By passing the light…
Definition of Life Part IV
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Finally, we can define life, not organically but from a spiritual point of view, as was simulated by some philosophical trains of thoughts or doctrines. Proponents of the anthropic principle,…
Definition of Life Part III
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This organization is usually governed by a genetic program, a series of instructions for carrying out metabolic reactions essential to the functioning of the cell and the organism if they…
Definition of Life Part II
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Conversely, a mule is alive but unable to have offspring. A computer virus can multiply by infecting programs like the biological equivalent infects a cell, but does it deserve to…
Definition of Life Part I
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To understand what we mean and before searching for the origins of life on Earth and elsewhere in the universe, we must first define what it represents. What is life?…
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