Every two years or so, there is a total solar eclipse somewhere on the Earth, in Africa, in Asia, in

To begin, I advise you to buy a small bezel 60 mm or 80 mm in diameter and 500 to

As you have understood according to the season, the Sun illuminates and warms more or less strong certain regions of

For thousands of years men believed that the Moon was so remote that it was inaccessible. When someone was told

Our Galaxy forms a disc a little thicker in the center that is observed in profile, which is why the

The Earth rotates on itself about an axis which is inclined by about 23 ° 27 ‘with respect to the

The luminous ball that enlightens us during the day is actually a star like all the ones you can see

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