Moon has Earth-Like Core 01.06.11
http://www.nasa.gov/topics/moonmars/features/lunar_core.html
Discovering details about the core of the moon is very important in order to create an accurate model of the moon's formation. The data sheds light on the evolution of a lunar dynamo -- a natural process by which our moon may have generated and maintained its own strong magnetic field. The team's findings suggest the moon has a solid, iron inner core with a radius of nearly 150 miles and a fluid, liquid-iron outer core with a radius of roughly 205 miles. Where it changes from Earth is the partially molten layer around the core estimated to have a radius of nearly 300 miles. The research indicates the core contains a small percentage of light elements such as sulfur. The researchers used data collected during the Apollo-era moon missions. The Apollo Passive Seismic Experiment consisted of four seismometers deployed between 1969 and 1972, which recorded continuous lunar seismic activity until late-1977. "We applied tried and true methodologies from terrestrial seismology to this legacy data set to present the first-ever direct detection of the moon's core," said Renee Weber, lead researcher and space scientist at NASA's Marshall Space Flight Center in Huntsville, Ala. Although sophisticated satellite imaging missions to the moon made contributions to the study of its history, the deep interior of Earth's sole natural satellite remained a subject of speculation since the Apollo era. A primary lunar seismic study was the wash of "noise" caused by overlapping signals bouncing repeatedly off structures in the moon's crust. Stacking improved the signal-to-noise ratio and made it able for the researchers to have a clearer track path of each unique signal as it passed through the lunar interior. "We hope to continue working with the Apollo seismic data to further refine our estimates of core properties and characterize lunar signals as clearly as possible to aid in the interpretation of data returned from future missions," Weber said. this article interested me, because I am very interested in space things, since I was a little kid, so I think it is mainly why it interested me. Another thing, is that the moon in the Earth’s satellite, and we never really talk about it, because we see it every day, it’s kind of the everyday thing. We always talk about planets and planet satellite’s such as Jupiter or Saturn, so for me, seeing an article of the moon was interesting, because I don’t see many of them in the web page. What you mostly see there is things about the planets in general, and photos. For me this is connected to my life, because I consider it a major thing in my life, I’ve always been interested in space things and always will be. It’s connected to my life in that sense, it’s a part of me, and the moon for example, is something that we can always admire, we can see it every day, in each of its stages, some days its brighter, bigger, or rounder, or the other way around. But we can always admire it, in any way or form that it takes. So I think that writing about the core of the Moon being similar to the Earth’s is something that may interest everyone, because we can actually relate it to something we know and where we live.
http://www.nasa.gov/topics/moonmars/features/lunar_core.html
Discovering details about the core of the moon is very important in order to create an accurate model of the moon's formation. The data sheds light on the evolution of a lunar dynamo -- a natural process by which our moon may have generated and maintained its own strong magnetic field. The team's findings suggest the moon has a solid, iron inner core with a radius of nearly 150 miles and a fluid, liquid-iron outer core with a radius of roughly 205 miles. Where it changes from Earth is the partially molten layer around the core estimated to have a radius of nearly 300 miles. The research indicates the core contains a small percentage of light elements such as sulfur. The researchers used data collected during the Apollo-era moon missions. The Apollo Passive Seismic Experiment consisted of four seismometers deployed between 1969 and 1972, which recorded continuous lunar seismic activity until late-1977. "We applied tried and true methodologies from terrestrial seismology to this legacy data set to present the first-ever direct detection of the moon's core," said Renee Weber, lead researcher and space scientist at NASA's Marshall Space Flight Center in Huntsville, Ala. Although sophisticated satellite imaging missions to the moon made contributions to the study of its history, the deep interior of Earth's sole natural satellite remained a subject of speculation since the Apollo era. A primary lunar seismic study was the wash of "noise" caused by overlapping signals bouncing repeatedly off structures in the moon's crust. Stacking improved the signal-to-noise ratio and made it able for the researchers to have a clearer track path of each unique signal as it passed through the lunar interior. "We hope to continue working with the Apollo seismic data to further refine our estimates of core properties and characterize lunar signals as clearly as possible to aid in the interpretation of data returned from future missions," Weber said. this article interested me, because I am very interested in space things, since I was a little kid, so I think it is mainly why it interested me. Another thing, is that the moon in the Earth’s satellite, and we never really talk about it, because we see it every day, it’s kind of the everyday thing. We always talk about planets and planet satellite’s such as Jupiter or Saturn, so for me, seeing an article of the moon was interesting, because I don’t see many of them in the web page. What you mostly see there is things about the planets in general, and photos. For me this is connected to my life, because I consider it a major thing in my life, I’ve always been interested in space things and always will be. It’s connected to my life in that sense, it’s a part of me, and the moon for example, is something that we can always admire, we can see it every day, in each of its stages, some days its brighter, bigger, or rounder, or the other way around. But we can always admire it, in any way or form that it takes. So I think that writing about the core of the Moon being similar to the Earth’s is something that may interest everyone, because we can actually relate it to something we know and where we live.
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