The European Space Agency (ESA) has published a guide on how to safely observe solar eclipses. ESA reserve astronaut Pablo Álvarez Fernández emphasizes the importance of using certified eclipse glasses to protect one's eyesight during this astronomical phenomenon. The guide details the different phases of an eclipse and when it is safe, or not, to look directly at the Sun, stressing that ordinary sunglasses do not offer the necessary protection.

A solar eclipse is an impressive cosmic event, but direct observation without proper protection can cause permanent eye damage. Certified eclipse glasses are designed with special filters that block ultraviolet, infrared, and most visible light, allowing for safe viewing. ESA aims to raise awareness about these risks and provide the necessary knowledge tools so that the public can enjoy this natural spectacle without compromising their visual health.