" Earth is the cradle of humanity but one cannot live in the cradle forever "
Konstantin TSIOLKOVSKY in 1911 - Russian scientist and mathematician, father of astronautics.
The Space Quote - Cradle
More NASA images of the day...
Browse into "NASA image of the day" files thanks to the arrows (on the left of the image), or take a look at the "Earth observatory" and "Astronomy pic of the day" images thanks to the icon top left of the picture...
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