July 14 Solar Flare and a Coronal Mass Ejection via NASA https://t.co/RTU0YCSUCl http://pic.twitter.com/EbK2Iqusw1
— martinengwicht (@martinengwicht) July 19, 2017
from Twitter https://twitter.com/martinengwicht
learning by doing
July 14 Solar Flare and a Coronal Mass Ejection via NASA https://t.co/RTU0YCSUCl http://pic.twitter.com/EbK2Iqusw1
— martinengwicht (@martinengwicht) July 19, 2017
from Twitter https://twitter.com/martinengwicht