Launching to Observe Our Sun via NASA https://t.co/fpM0pgwzR4 pic.twitter.com/EK9jtwiRlH
— martinengwicht (@martinengwicht) June 21, 2018
from Twitter https://twitter.com/martinengwicht
learning by doing
Launching to Observe Our Sun via NASA https://t.co/fpM0pgwzR4 pic.twitter.com/EK9jtwiRlH
— martinengwicht (@martinengwicht) June 21, 2018
from Twitter https://twitter.com/martinengwicht