The Bluest of Ice via NASA https://t.co/lzm6VUnaE6 http://pic.twitter.com/QZSawlCrR3
— martinengwicht (@martinengwicht) December 19, 2017
from Twitter https://twitter.com/martinengwicht
learning by doing
The Bluest of Ice via NASA https://t.co/lzm6VUnaE6 http://pic.twitter.com/QZSawlCrR3
— martinengwicht (@martinengwicht) December 19, 2017
from Twitter https://twitter.com/martinengwicht