Wednesday, March 17, 2010

Pluto



Pluto
By: Gregory  L. Vogt

Pluto is a good book. It tells you about Pluto. It is cool. You learn things about scientists and Pluto. They give you a lot of information about Pluto. They tell you how hot it is on Pluto. It tells you how long Pluto rotates around the sun.  And in the middle part, there is something cool. And at the end too.
I will recommend this book                                                                                                                                                                                                                                                                                                                
           
I give this book a 10 out of 10.

by Keshawna

1 comment:

Laurel Kornfeld said...

Pluto and all dwarf planets are planets too. Pluto is still a planet, as are Ceres, Haumea, Makemake, and Eris. Please do not blindly accept the controversial demotion of Pluto, which was done by only four percent of the International Astronomical Union, most of whom are not planetary scientists. Their decision was immediately opposed in a formal petition by hundreds of professional astronomers led by Dr. Alan Stern, Principal Investigator of NASA’s New Horizons mission to Pluto. Stern and like-minded scientists favor a broader planet definition that includes any non-self-luminous spheroidal body in orbit around a star. The spherical part is important because objects become spherical when they attain a state known as hydrostatic equilibrium, meaning they are large enough for their own gravity to pull them into a round shape. This is a characteristic of planets and not of shapeless asteroids and Kuiper Belt Objects. Pluto meets this criterion and is therefore a planet. Using this broader definition gives our solar system 13 planets and counting: Mercury, Venus, Earth, Mars, Ceres, Jupiter, Saturn, Uranus, Neptune, Pluto, Haumea, Makemake, and Eris. At the very least, you should note that there is an ongoing debate rather than portraying one side as fact when it is only one interpretation of fact.

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