On 12 August 2026, Spain will be at the centre of one of the most spectacular astronomical phenomena: a total solar eclipse. For a few minutes, the Moon will completely cover the Sun and transform the light, the landscape and our perception of our surroundings, offering an unforgettable experience. Álex Mendiolagoitia from the Spanish Federation of Astronomical Associations (FAAE) explains what makes this phenomenon so special, how it will unfold, and what recommendations to bear in mind to enjoy it safely.