Dear friends,
Dark energy(matter) seems to be today’s most hot issue in cosmology. And nowadays, cosmologists still do not know what it is! Why it is so mysterious and what prevent them from finding it?Actually, we couldeasilyfound itby looking back and reconsidering Einstein general theory of relativity which is the foundation of modern cosmology!
Anyway, before finding out for the dark energy itself, we should recall how the word “dark energy” was born in cosmology. Due to galaxies rotation problem in which their orbital rotational velocity do not obey Newton law of gravity; i.e. the velocity should decease while the distance from the center increases. Instead, galaxies orbital rotational velocity is uniform for any distance from their center. So it seems as if there is a halo of dark matter (energy) of the galaxy!
By the way, some cosmologists have try to explain the galaxies rotation problem by invent “modified Newtonian dynamics (MOND)” theory, but it is not so successful! Next, we will see how the reconsideration of Einstein general theory of relativity could lead to solve the dark energy problem.
Sincerely,
Nimit
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www.vacuum-mechanics.com .


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