The Wizard Nebula via NASA https://j.mp/32TV7ip https://j.mp/3gZr9ib

aki

5年前

The Wizard Nebula via NASA https://t.co/FrmqMvEuiN pic.twitter.com/8HHP3P1oC6

— Akihiko SHIRAI, Ph.D #VTC20 (@o_ob) September 4, 2020

from Twitter https://twitter.com/o_ob