Stargazers flock to 'astrotourism' event in Évora, Portugal
Video Credit: euronews (in English) - Duration: 02:30s - Published
Stargazers flock to 'astrotourism' event in Évora, Portugal
A huge increase in so-called Astrotourism has been marked, in Portugal, by the first international congress to discuss the preservation of night sky and access to starlight