Great Conjunction over Sicilian Lighthouse via NASA https://j.mp/3lYfL8y https://j.mp/33Umjil

aki

5年前

Great Conjunction over Sicilian Lighthouse via NASA https://t.co/MmLJFTggzU pic.twitter.com/BNtgL7wQpo

— しらいはかせ #XRKaigi2020 (10日15時) #CCSE2020 (12:40)登壇予定 (@o_ob) December 8, 2020

from Twitter https://twitter.com/o_ob