This sequence of illustrations shows the aspect of matter on different scales: from enormous bodies to minuscule ones.

To make this journey has meant a great challenge for the human mind, which has been able to understand how matter is formed by "looking" beyond what the eyes can see. Physics transcends the senses, goes beyond common sense and by means of the scientific method investigates different material systems. 

The remotest galaxies which we have seen are approximately 10,000 million light years away. This is the distance that light covers in 10,000 million years travelling at a speed of 300,000 km/s, so that in fact we are seeing them as they were then, when the Earth and the Solar system still did not exist.

At the other extreme, in the minuscule world, the distance among quarks which are in the nuclei of atoms is very small, about  0.000 000 000 000 001 m.