Etiqueta: space exploration

Gaia: the ultimate picture of the Milky Way

At the Lund Observatory in Sweden there is a painting of the first realistic representation of our galaxy, the Milky Way. The idea of carrying out this scientific and artistic work came from the Swedish astronomer Knut Lundmark who, at the beginning of the 1950s, set out to represent the Milky Way as a whole.

cosmic inventory
The Cosmic Inventory

In ancient Greece, Empedocles stated that everything was made up of only four elements: water, fire, earth and air. It was undoubtedly the first attempt to describe the content of our universe. Over a hundred years later, Aristotle added a fifth element: ether or quintessence, which formed the stars, while the other four were the constituents of terrestrial substances.