ISEN-ASTC-L is a service of the Association of Science-Technology Centers
Incorporated, a worldwide network of science museums and related institutions.
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Apologies for cross-postings.

The new issue of the Universe in the Classroom is now available:
http://www.astrosociety.org/education/publications/tnl/70/pluto.html

Hubble Observations of Ceres and Pluto: A Closer Look at the "Ugly  
Ducklings" of the Solar System
by Max Mutchler, Space Telescope Science Institute

Pluto has made the news quite often since August, when the  
International Astronomical Union voted on the definition of a planet  
and in the process "demoted" Pluto to a dwarf planet. Why isn't Pluto  
a planet anymore? Are there are other objects like Pluto in our Solar  
System? Find out more in this issue of the Universe in the Classroom.

Topics include:

     * The history of the number of planets in our solar system
     * Ceres, the dwarf planet in the asteroid belt
     * Pluto's fate
     * Missions to Pluto and Ceres
     * Two classroom activities about the scale and structure of the  
Solar System

http://www.astrosociety.org/education/publications/tnl/70/pluto.html

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The Universe in the Classroom is the ASP's electronic educational  
newsletter for teachers and other educators around the world who want  
to help students of all ages learn more about the wonders of the  
universe through astronomy.

To sign up for email updates or to browse the archives, visit the  
main Universe in the Classroom page: www.astrosociety.org/uitc


-------------------------
Anna Hurst
Astronomical Society of the Pacific
390 Ashton Avenue
San Francsico, CA 94112
(415) 337-1100 ext. 108
[log in to unmask]

www.astrosociety.org/afgu
www.astrosociety.org/uitc
-------------------------

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