teide observatory open days 2026

Teide Observatory Open Days welcome nearly a thousand visitors

Teide Observatory reopens for iconic Open Days

The Teide Observatory has reopened its doors this weekend, welcoming nearly a thousand visitors for its now-iconic Open Days. Organised by the Instituto de Astrofísica de Canarias (IAC) to coincide with the summer solstice, this annual event continues to serve as a cornerstone of the Institute’s commitment to sharing knowledge and making its scientific facilities accessible to the public.

A joint effort to bring science closer to the public

The initiative, a joint effort between the observatory team and the IAC’s Communication and Scientific Culture Unit (UC3), with support from the Fundación Canaria Cajasiete-Pedro Modesto Campos, aims to humanise scientific activity. Through this event, the public gets a glimpse into the daily workings of one of the world’s leading astrophysical complexes, showcasing not only cutting-edge technology but also the passion of the staff who keep it running.

Guided tours and hands-on activities over two days

Over the two days – from yesterday, Saturday, and throughout today – visitors are spread across four time slots, each following a guided route lasting roughly three hours. The itinerary, made up of nine themed stations, is led by IAC researchers and technicians, who share their first-hand experiences. Guests not only discover how the professional telescopes installed on Tenerife’s peaks work, but also delve into topics ranging from the secrets of solar physics to cosmology and the study of the cosmic microwave background. In addition, attendees can enjoy practical workshops and real-time observations of the Sun.

‘The best reward for the whole team’s effort’

For the Teide Observatory’s administrator, David Nespral, the success of the event brings deep satisfaction: “Seeing the excitement and curiosity in people’s eyes when they look at the telescopes is the best reward for the whole team’s effort. Year after year, the response from Canarian society exceeds our expectations, and it fills us with immense pride to know that they feel this observatory is their own and fundamental to the Islands.”

Inspiring a love for the universe

Meanwhile, astrophysicist and UC3 science communicator Alfred Rosenberg highlighted the emotional and cultural impact of the event: “Beyond the scientific data, these Open Days allow us to convey the thrill of discovering the universe. It is a truly inspiring reunion where science embraces society; an ideal opportunity for the public to fall in love with the technological excellence generated here and to become aware of how fortunate we are to safeguard one of the purest and clearest skies on the planet.”

Year-round guided tours available

For those unable to attend this weekend, the Teide Observatory remains open to public engagement throughout the year through various guided tour formats. Those interested can find out about available options and make reservations via the Visits section on the centre’s official website.

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