Science Mission Directorate. "What is a Planet?" Mission:Science. 2009. National Aeronautics and Space Administration. 09 Nov. 2011 http://missionscience.nasa.gov/nasascience/what_is_a_planet.html
The arguments made about the requirments of planets has now come to an end. That is because they have made a definition of it. Each planet must; orbit (go around) the sun, it has to be big enough so it's gravity turns it into a round ball, and it has to be big enough to push things like planets out of it' s area. The ex-planet named Pluto was demoted to a dwarf planet because it did not meet the last standard. The word planet came from the Greek word Planetes which means wanderer. As we started to get better telescopes we started to find more of our planets. So as you can see, now the arguments of whether or not Pluto is a planet is useless.
I think this was interesting. I never knew the standards of a planet. I am sad that little Pluto is not a planet, but it isn't quite big enough.
Very interesting article I have to say and the content is really interesting also. I have never thought about this subject that you are referring to "What are the Planets". I really liked that you included the detail about the Greek word and thank you very much about informing us about those stuff. Great job
ReplyDeleteHi Abby,
ReplyDeleteThis is very interesting that a planet has standards. However, is this a current news event? I believe this happened a while ago.
Really interesting, I learned a lot!
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