Astronomy

Mars throughout history

- 25 January 2023

The Chaldeans and other ancient nations knew Mars as one of the five “wandering stars” (the Greeks called the wandering stars planets, hence the current name for these bodies). They also know Mars’ characteristic that it sometimes moves backwards in the sky – the so called retrograde movement, but only in relation to faster bodies.

Mercury’s odd and fascinating day

- 13 January 2023

On our planet, the Sun appears in the east, then it rises and when it reaches the highest point in the sky, it is noon. After that, the Sun descends towards the horizon and sets in the west. Then it’s evening. When the Sun rises again one day is completed.