The Sun rises and sets every day, but at first glance we cannot notice its changes. According to NASA, our most important star is currently in a so-called "Great Solar Minimum", a phenomenon that last occurred in the 18th century. Julieta Fierro Grossman, senior researcher at the Institute of Astronomy at UNAM, tells us how the cycles of the Sun affect us.
READ: The last time the Sun was so inactive, the Ice Age happened on Earth