Horst Keller
Horst Keller
large life question universe zone
There's also the question of how large the zone in the universe is where life can develop.
distance earth equivalent
This is a long way off, equivalent to two thirds of the distance from the Earth to the Moon.
camera clouds earth layer round shapes spiral thick
Usually we only see a thick vapor layer from Earth, but with our camera we can look into it, see shapes in the clouds and a spiral round the pole.