Joho the Blog
An Entry from the Archives

« What's wrong with this photo? || Back to Blog | Speaking of muni wifi »

August 02, 2005

Categorizing the planets

Example of the conventionality of scientific classifications: We can't even agree on what counts as a planet.

According to an editorial in today's NY Times, Michael Brown, a Caltech astronomer, declined to call the object he found last year a planet and suggested that neither is Pluto. Now he's found something bigger than Pluto and suggests that we call it and Pluto planets. According to The Times: "There was still no good scientific rationale for the judgment, he admitted, but this was a case where habit — 75 years of calling Pluto a planet—should trump any scientific definition."

I don't care except that I like that something we take as so iconic, so definitional as the solar system itself should turn out to be as much a matter of convention as whether we count pool as a game or as a sport. [Thanks to our daughter Leah for the link.] [Technorati tags: taxonomy astronomy]

Posted by D. Weinberger at August 2, 2005 06:11 PM


Post a comment

Guidelines for Commenting

Basically, you can say what you want. (Click here for the fine print.)

If you haven't left a comment here before, your comment may be put into a queue for me to approve. Sorry for the delay. Blame the damn spammers.