Cosmic Light

Noites no Observatório – Luz Cósmica

The public talk this month is titled “Cosmic Light: The international Year of Light 2015” and the speaker will be Pedro Russo, of Leiden University.

Observations of the night sky will run continuously until midnight, if weather conditions allow.

Noites no Observatório are monthly sessions comprising of a public talk, given by researchers of Instituto de Astrofísica e Ciências do Espçao (IA), and observations of the night sky with telescopes.

Noites no Observatório are being organised since 2009 and are regularly framed within national and international events, such as the European Researchers Night or the Science and Technology Week.



2,5 horas

Free entrance


Although the entrance is free of charge, the access to the activity requires a registration here.

Due to the growing audience attending our activities and the fact that some people give up without notice, an email will be sent asking for confirmation. The lack of a reply within 48 hours after the reception of this confirmation request will be taken as a dropout and the registration will be cancelled. For this reason, please check your email inbox regularly in order to confirm your attendance in the activity.

The observation of the night sky depends on the weather conditions. As this is run outside, we recommend the use of warm clothes.

The talk is given regardless of the observations. The public talk is given in Portuguese.


Observatório Astronómico de Lisboa
Tapada da Ajuda

Live broadcasting

You can attend the session from home using this web address, where you can also ask questions to the speaker.

The web broadcast of the public talks is supported by the Fundação para a Computação Científica Nacional (FCCN), a division of Fundação para a Ciência e a Tecnologia (FCT).