# cosmos

The cosmos (from ancient Greek κόσμος — universe) is a relatively empty section of the universe located outside the atmospheres of celestial bodies.

In this section, we write about space exploration, the latest technologies, telescopes, eclipses, trips to Mars or the Moon, etc.

Contrary to popular belief, the cosmos is not completely empty, but it has a very low density of matter.

It is mainly hydrogen in the atomic, molecular or ionized state), there are also other simple gases (Helium, Nitrogen, Oxygen), solid dust particles containing mainly Carbon, and several dozen different molecules were detected using microwave spectroscopy. At the same time, the cosmos is filled with electromagnetic radiation, in particular the relict radiation remaining after the Big Bang, and cosmic rays, which contain ionized atomic nuclei and various subatomic particles.