The shape of the “world” has always aroused our curiosity. If we believe that the universe is finite, common sense leads us to believe that this universe must be enclosed. …
We speak of a system because there is not only one ring but countless, almost an infinity. The rings of Saturn are unique in the solar system because they are …
We tend to say that the universe began with the Big Bang and then expanded. It is a metaphor, but everyone understands what it represents or nearly. Because this image …
Mercury is the closest planet to the Sun. It orbits 58 million kilometers from the Sun, 2.7 times closer than the Earth. Mercury is a small planet that resembles the …
Is the cube a hexahedron? From a topological point of view, the shape of space depends on its overall surface. Thus, the ad-hoc projection of a cube on a plane …
The luminous ball that enlightens us during the day is actually a star like all the ones you can see at night in the sky, with the only difference that …
In relation to the Sun, Venus is the second planet after Mercury, just in front of the Earth. It is the only planet that shines stronger than the Sirius star, …
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 …
To answer Pascal’s philosophical questions concerning our place in the universe and the passionate interest of the public, the field of action of scientists could not be limited to astronomy. …