Media Information
 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
Welcome to Planet Earth
Explanation:
Welcome to Planet Earth [ http://antwrp.gsfc.…], the third planet from a star [ http://en.wikipedia…] named the Sun [ http://www.darkmatt…]. The Earth is shaped like a sphere [ http://octopus.gma.…] and composed mostly of rock [ http://www.seismo.u…]. Over 70 percent of the Earth's surface is water [ http://antwrp.gsfc.…]. The planet has a relatively thin atmosphere [ http://csep10.phys.…] composed mostly of nitrogen [ http://periodic.lan…] and oxygen [ http://periodic.lan…]. The above picture [ http://grin.hq.nasa…] of Earth, dubbed Blue Marble [ http://en.wikipedia…], was taken from Apollo 17 [ http://science.ksc.…] in 1972 and features Africa and Antarctica. It is thought to be one of the most widely distributed photographs [ http://neil.fraser.…] of any kind. Earth has a single large Moon [ http://www.nineplan…] that is about 1/4 of its diameter and, from the planet's surface, is seen to have almost exactly the same angular size as the Sun [ http://antwrp.gsfc.…]. With its abundance of liquid water [ http://www.epa.gov/…], Earth [ http://www.nineplan…] supports a large variety of life forms [ http://cmex.ihmc.us…], including potentially intelligent species such as dolphins [ http://www.littleto…] and humans [ http://antwrp.gsfc.…]. Please enjoy your stay on Planet Earth.
Credit and Copyright:
Apollo 17 Crew [ http://www.hq.nasa.…], NASA [ http://www.nasa.gov/]
facet_when:
1972
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Earth
facet_what:
Moon
facet_what:
Sun
facet_what:
Apollo 17
facet_when_year:
1972
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap070325

Welcome to Planet Earth
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