It is called “astronaut” in Europe and “cosmonaut” in Russia but these words mean the same thing. The job of astronaut is certainly the most dreaming of young people and…
Astronomy
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They tries to understand the universe, how planets, stars and galaxies are formed; analyzes the light of variable stars or quasars; searches for planets outside the solar system or black…
The Death of the Universe
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Finally, there remains one last question: how will the universe end? We know now that it started very small and very hot and that it is today almost cold and…
Oberserving The Stars
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To begin, I advise you to buy a small bezel 60 mm or 80 mm in diameter and 500 to 900 mm focal length. You can also use a spotting…
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Compared to the 40m diameter ELT, which will likely be used for 100 years and more, the JWST will fail 10 years after launch due to lack of fuel. If…
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Before we consider exploring our galaxy and the universe, we must first and foremost place our home, the earth and the solar system in this vast cosmos. The knowledge we…
Our Galaxy
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Our Galaxy forms a disc a little thicker in the center that is observed in profile, which is why the Milky Way seems very long and quite thin. The stars…