CTA North Phase 1: LST 2-4 and MST 3 Foundation and Infrastructure #CTALaPalma2017 @IAC_Astrofisica https://t.co/9mHeW3Pzih

CTA North Phase 1: LST 2-4 and MST 3 Foundation and
Infrastructure #CTALaPalma2017 @IAC_Astrofisica https://t.co/9mHeW3Pzih