LST prototype foundation work in La Palma is underway! Watch live: https://t.co/c9UnTzI8zQ @IAC_Astrofisica #LaPalma https://t.co/l93hw1aFCD

LST prototype foundation work in La Palma is underway! Watch live: https://t.co/c9UnTzI8zQ @IAC_Astrofisica #LaPalma https://t.co/l93hw1aFCD