Illustration of Cool Dust Around an Active Black Hole via NASA https://t.co/YxCca5ujz6 http://pic.twitter.com/1S2h89KBG2
— martinengwicht (@martinengwicht) June 13, 2017
from Twitter https://twitter.com/martinengwicht
learning by doing
Illustration of Cool Dust Around an Active Black Hole via NASA https://t.co/YxCca5ujz6 http://pic.twitter.com/1S2h89KBG2
— martinengwicht (@martinengwicht) June 13, 2017
from Twitter https://twitter.com/martinengwicht