Just a somewhat off topic side note while thinking of "they all go into 
the dark": this morning on NPR astrophysicist Neil deGrasse Tyson was 
interviewed on dark matter and dark energy, which are apparently two 
different things and together compose "96% of what drives the universe." 
It's a very short interview and may relieve anyone who hears it from any 
future need to get their thrills on amusement park rides: 
http://www.npr.org/programs/morning-edition/

At the bottom of the page; after today change the date at the top to 
October 31.

Trick 'r' Treat,
KA