New Planet Definition Enlarges Solar System

The Inter­na­tion­al Astro­nom­i­cal Union (IAU) has craft­ed a new def­i­n­i­tion for what con­sti­tutes a plan­et that would expand the solar sys­tem to Plu­to and beyond, encom­pass­ing 12 bod­ies in all.

The Inter­na­tion­al Astro­nom­i­cal Union (IAU) has craft­ed a new def­i­n­i­tion for what con­sti­tutes a plan­et that would expand the solar sys­tem to Plu­to and beyond, encom­pass­ing 12 bod­ies in all.

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