Watching the Aurora From Orbit via NASA https://t.co/bEaeZGzLcQ http://pic.twitter.com/Yql3n6ymd4
— martinengwicht (@martinengwicht) July 25, 2017
from Twitter https://twitter.com/martinengwicht
learning by doing
Watching the Aurora From Orbit via NASA https://t.co/bEaeZGzLcQ http://pic.twitter.com/Yql3n6ymd4
— martinengwicht (@martinengwicht) July 25, 2017
from Twitter https://twitter.com/martinengwicht