First-time Visions of Earth from Space

When people escaped gravity and started to travel in space, astronauts were amazed by the view when they looked back at the Earth. There are many photographs of such individual moments of wonder - and captured alongside these images come anecdotes recording the difficulty the astronauts encountered in trying to describe what they were seeing. This fascinates me. Not just the inevitable challenge with language and expression, but also the compulsion to depict and interpret in the first place...