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Top 10 Apollo Era Moon Discoveries
posted: 30 June 2005
07:46 am
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1Scientists say that a lot of what they know about the Moon and in fact the entire solar system was confirmed or revealed by studies conducted by Apollo astronauts or subsequent work done with the Moon rocks and dust they brought back. NASA has put together a list of the Top 10 discoveries aided by the Apollo missions. Here they are: 1 The Moon is not a primordial object. It is an evolved terrestrial "planet" with internal structure similar to that of Earth. Before Apollo, the state of the Moon was a subject of almost unlimited speculation. We now know that the Moon is made of rocky material that has been variously melted, erupted through volcanoes, and crushed by meteorite impacts. The Moon possesses a thick crust (60 km), a fairly uniform lithosphere (60-1000 km), and a partly liquid asthenosphere (1000-1740 km); a small iron core at the bottom of the asthenosphere is possible but unconfirmed. Some rocks give hints for ancient magnetic fields although no planetary field exists today.
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