Arecibo Telescope Collapse via NASA https://j.mp/36VWMaC https://j.mp/2LlTG7t

2020-12-09 aki

Arecibo Telescope Collapse via NASA https://t.co/2O4XQJfgxN pic.twitter.com/aCRqG3sEFd

— しらいはかせ #XRKaigi2020 (10日15時) #CCSE2020 (12:40)登壇予定 (@o_ob) December 9, 2020

from Twitter https://twitter.com/o_ob