Patches of Snow on the Red Planet via NASA https://t.co/IykrkyZu7t pic.twitter.com/OQLr80Rbjx
— martinengwicht (@martinengwicht) June 5, 2018
from Twitter https://twitter.com/martinengwicht
learning by doing
Patches of Snow on the Red Planet via NASA https://t.co/IykrkyZu7t pic.twitter.com/OQLr80Rbjx
— martinengwicht (@martinengwicht) June 5, 2018
from Twitter https://twitter.com/martinengwicht