Better Collision Insurance published in American Scientist in Sept-Oct 2005
American Scientist article on the need for Planetary Defense from asteroids by Rusty Schweickart and Clark Chapman...
01 October, 2005
NASA
US Senate testimony of Rusty Schweickart and Ed Lu
Testimony to Senate Subcommittee on Science, Technology, and Space on the subject of Planetary Defense by B612 leaders....
07 April, 2004
Letter to the President of United States about the most pressing science problems of the day
Letter to the president answering the question “What are the pressing scientific issues for the nation and the world, and what is your advice on how I can begin to deal with them?” submitted by Piet Hut B612 Board Director...
01 November, 2002