Veil of Ice via NASA https://t.co/2iTu2ojil1 http://pic.twitter.com/6LpT1oFRyA
— martinengwicht (@martinengwicht) January 8, 2018
from Twitter https://twitter.com/martinengwicht
learning by doing
Veil of Ice via NASA https://t.co/2iTu2ojil1 http://pic.twitter.com/6LpT1oFRyA
— martinengwicht (@martinengwicht) January 8, 2018
from Twitter https://twitter.com/martinengwicht