28 janv. 2019 - Sun
Description:
An interesting fact about the Sun is that it is the true center of the solar system, despite early astronomers' geocentrism beliefs. Also, if you track the origin of our energy systems, the Sun is the main source of our planet's energy.Ajouté au bande de temps:
Date:
28 janv. 2019
Maintenaint
~ Il y a 6 ans et 4 mois