This pic shows how fragile Earth is–the thin band on the horizon is our atmosphere, the only protection from the vacuum & radiation of spacepic.twitter.com/GPP3xXtLKE
lundi 24 avril 2017 à 23:40This pic shows how fragile Earth is–the thin band on the horizon is our atmosphere, the only protection from the vacuum & radiation of space pic.twitter.com/GPP3xXtLKE