Astronomers to Pluto: You’re Fired!

Updating a story I posted last week, astronomers meeting in the Czech Republic have decided that Pluto no longer meets the qualifications of a full-fledged planet. The astronomers gathered voted to demote Pluto to the status of dwarf planet, a new category which also includes the asteroid Ceres and UB313 (aka “Xena”). Pluto got the boot because it doesn’t have enough mass to maintain a spherical orbit around the sun — its orbit interferes with that of Neptune.

Now only the eight classical planets will be considered true planets. Third-grade science teachers everywhere are reported desperately thinking up new mnemonic devices before the school year starts.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s