The glasses to see the eclipse on August 12 can be obtained for free thanks to a campaign promoted by the Ministry of Science, Innovation and Universities and the ONCE Social Group. Both entities will distribute two million certified glasses so that citizens can observe the phenomenon safely and prevent eye injuries.
The initiative is part of the agreement signed this Monday between both institutions to prepare for the so-called Trio of Eclipses, which includes the astronomical phenomena expected for 2026, 2027, and 2028. Of the total glasses, 1.7 million will be distributed by ONCE. The remaining 300,000 will arrive through the Spanish Foundation for Science and Technology (FECYT), to museums, research centers, and other public entities linked to science and universities.
How to obtain the free glasses to see the eclipse
The glasses will begin to be distributed starting August 3. The ONCE Social Group will be responsible for distributing 1.7 million certified copies through its network of sellers spread throughout Spain.
The remaining 300,000 glasses will be distributed by FECYT among research centers, science museums, and other public entities related to science, innovation, and universities. These spaces will also organize outreach activities to explain how to safely observe the eclipse.
A campaign for the Trio of Eclipses
The distribution is part of the campaign 'A unique view. Take care of it', promoted by the Ministry of Science and the ONCE Social Group to prevent the risks associated with direct observation of the Sun during the Trio of Eclipses that can be seen from Spain between 2026 and 2028.
In addition to the distribution of glasses, both entities will collaborate in the development of accessible educational materials and in informational campaigns aimed at explaining how to contemplate these astronomical phenomena without risking visual health. The educational information will be available through the website trioeclipses.es.
Spain will experience three eclipses between 2026 and 2028
The first of these phenomena will be the total solar eclipse on August 12, which will cross northern Spain at sunset and can be observed in a wide strip that will go from Galicia to the Balearic Islands.
The calendar will continue with a second total eclipse on August 2, 2027, considered by the scientific community as the 'Eclipse of the Century' due to its duration, and will end on January 26, 2028, with an annular eclipse that will allow observing what is known as the 'ring of fire' in different areas of the Peninsula and the Balearic Islands.
How to safely observe the eclipse
The Ministry of Science reminds that to observe an eclipse it is essential to use glasses certified according to the ISO 12312-2 standard and to check before using them that they do not have scratches, perforations, or other defects.
It also warns that one should never look directly at the Sun with binoculars, telescopes, or cameras without a professional solar filter installed on the front of the equipment, as doing so can cause permanent eye injuries.
Where to get free glasses to see the eclipse
The certified glasses will be available for free starting from August 3 through the sellers of ONCE distributed throughout Spain and in a network of museums, planetariums, botanical gardens, and scientific dissemination centers that collaborate with the campaign promoted by the Ministry of Science, Innovation, and Universities and the ONCE Social Group.
These are the participating centers by autonomous communities:
Andalusia
- Interactive Music Museum of Málaga (MIMMA).
- Science Park of Andalusia (Granada).
Aragon
- Aragonese Museum of Paleontology (Teruel).
Canary Islands
- Science and the Cosmos Museum (Tenerife).
- Elder Museum of Science and Technology (Las Palmas de Gran Canaria).
- Eyes to the Sky (La Palma).
Castilla-La Mancha
- Castilla-La Mancha Science Museum (Cuenca).
- Castilla-La Mancha Paleontology Museum (Cuenca).
Castilla y León
- The Light Factory. Energy Museum (Ponferrada).
- Valladolid Science Museum.
Catalonia
- Natural Sciences Museum of Barcelona.
- Mathematics Museum of Catalonia (Cornellà de Llobregat).
- Astronomical Park of Montsec (Lleida).
Community of Madrid
- National Museum of Science and Technology (MUNCYT) of Alcobendas.
- National Museum of Natural Sciences (Madrid).
- Royal Botanical Garden (Madrid).
Foral Community of Navarra
- Science Museum of the University of Navarra (Pamplona).
Valencian Community
- Big History. Center for Scientific and Environmental Dissemination (Aras de los Olmos).
- City of Arts and Sciences (Valencia).
- Botanical Garden of the University of Valencia.
- Alicante Water Museum.
- Natural Science Museum of Valencia.
- Didactic and Interactive Science Museum of the Vega Baja del Segura (Orihuela).
- Planetarium of Castellón.
Galicia
- National Museum of Science and Technology (MUNCYT) of A Coruña.
- Scientific Museums of A Coruña.
La Rioja
- House of Sciences of Logroño.
Basque Country
- Eureka! Science Museum (San Sebastián).
Principality of Asturias
- Bioparc Aquarium of Gijón.
Region of Murcia
- Museum of Science and Water of Murcia.
In addition to these centers, the ONCE Social Group will distribute 1.7 million free glasses to see the eclipse through its network of sellers across the national territory, while the Spanish Foundation for Science and Technology (FECYT) will distribute the remaining 300,000 among participating centers and other public entities in the scientific and university field.