All of the "we never landed on the moon" conspiracy believers have new fuel for the fire. The BBC just ran a story stating "A treasured piece at the Dutch national museum - a supposed moon rock from the first manned lunar landing - is nothing more than petrified wood, curators say."

Prime Minister Willem Drees was given the moon treasure by the three Apollo-11 astronauts shortly after their moon mission in 1969. The museum has decided to the keep the rock on display because of the story, and admited to having a laugh about it.

http://news.bbc.co.uk/2/hi/europe/8226075.stm

On a more serious note there is a really well written and documented article on this subject from the University of Washington in St. Louis Missouri asking the question How Do We Know That It's a Rock from the Moon?

Image Credit: For more information about the Cassini-Huygens mission, visit http://saturn.jpl.n…and the Cassini imaging team home page, http://ciclops.org. *Image Credit:* NASA/JPL/Space Science Institute