What is The Blue Marble?
{{italic title}} [[File:The Earth seen from Apollo 17.jpg|thumb|300px|''The Blue Marble''— Earth as seen by Apollo 17 in 1972]] '''''The Blue Marble''''' is a [[photograph]] of the Earth. It was made on December 2, 1972, by the crew of the [[Apollo 17]] spacecraft. At that time they were on their way to the [[Moon]] at a distance of about {{convert|18000|mi}} from the Earth. It is one of the most reproduced images in human history.<ref name=Petsko>{{cite journal |last=Petsko |first=Gregory A |title=The blue marble |journal=Genome Biology |volume=12 |issue=4 |pages=112 |doi=10.1186/gb-2011-12-4-112 |date=2011 |doi-access=free |pmid=21554751 |pmc=3218853 }}{{Dead link|date=December 2020 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> ==Related pages== * [[Earth phase]] * [[Extraterrestrial sky]] * ''[[:File:NASA-EarlyEarth-PaleOrangeDot-20190802.jpg|Pale Orange Dot]]'' ([[History of Earth|Early Earth]]) * [[Spaceship Earth]] ==References== {{reflist}} {{science-stub}} {{DEFAULTSORT:Blue Marble, The}} [[Category:Apollo program]]