![](https://divulgacao.iastro.pt/wp-content/uploads/2019/05/IA_100-ECLIPSE_HD1-1-388x220.png)
100 years of space-time: Gravitational Waves – The cosmic symphony that shook the world
Free entrance
In the celebrations of the total solar eclipse of 1919, take part in astronomical observations, guided visits to a historical observatory and a public talk about gravitational waves.