Monday, Dec. 7 was the 37th anniversary of the original "Blue Marble" photograph taken on the Apollo 17 mission. it seemed to me a lovely reminder of what we're hoping our leaders will decide to save in Copenhagen.

"I left Earth three times. I found no place else to go. Please take care of Spaceship Earth."

-- Wally Shirra, astronaut on Mercury, Gemini, and Apollo missions

"On the first day we all pointed to our countries. On the third or fourth day we all pointed to our continents. By the fifth day, we were aware of only one Earth."

-- Sultan bin Salman Al Saud, astronuat from Saudi Arabia, after his flight into space in 1984.