Alexander Gerst

Alexander Gerst Instagram – Scary. I took these photos from the @iss. They show two meteorite impact craters in Chad (Sahara) which are 13 and 14 km wide. Imagine how many times your city could fit in them. To avoid this in the future, @europeanspaceagency works with international partner agencies on space safety. #AsteroidDay #bluedot #horizons | Posted on 30/Jun/2020 14:28:39