List of impact craters on Earth List of meteor air bursts NEOShield Near Earth Object Surveillance Satellite (NEOS Sat) Planetary Resources Potentially hazardous object Spaceguard Spaceguard Foundation Tunguska event United Nations Committee on the Peaceful Uses of Outer Space (UN COPUOS) References Notes Citations Further reading Lewis, John S. Comet And Asteroid Impact Hazards On A Populated Earth: Computer Modeling, Volume 1, Academic Press, 2000, , Powell, Corey S. "How to Deflect a Killer Asteroid: Researchers Come Up With Contingency Plans That Could Help Our Planet Dodge A Cosmic Bullet", Discover, September 18, 2013, pp. 58–60 (subscription). Schweickart, Lu, Hut and Chapman. "The Asteroid Tugboat: To Prevent An Asteroid From Hitting Earth, A Space Tug Equipped With Plasma Engines Could Give It A Push", October 13, 2003, Scientific American Steel, Duncan. Rogue Asteroids and Doomsday Comets: The Search for the Million Megaton Menace That Threatens Life on Earth, Wiley & Sons, 1995, [1997], , . External links B612 Foundation: early website homepage (archived) B612 Foundation: Sentinel Mission Factsheet (Feb. 2013, PDF) Dr. Ed Lu at TEDxMarin: Changing the Course of the Solar System (video, 14:04) NBC Nightly News: Early-Warning Telescope Could Detect Dangerous Asteroids, broadcast April 22, 2014 (video, 2:27) Defending Earth from Asteroids with Neil deGrasse Tyson, public presentation and moderated panel discussion with members of the Association of Space Explorers and the B612 Foundation, at the American Museum of Natural History, New York City, October 25, 2013 (video, 58:03) NEO Threat Detection and Warning: Plans for an International Asteroid Warning Network, Presentation to the United Nations Committee on the Peaceful Uses of Outer Space (UN COPUOS) by Dr. Timothy Spahr, Director, Minor Planet Center, Smithsonian Astrophysical Observatory, February 18, 2013 (PDF) Dr. Ed Lu Congressional Testimony, Washington, D.C., March 20, 2013, United States Senate Sub-Committee on Science and Space: "Assessing the Risks, Impacts and Solutions for Space Threats" (video, 23:49) (DVD, video, 53:24). Also viewable (within some countries) as Rusty's Talk: Dinosaur Syndrome Avoidance Project - How Gozit?, a July 17, 2014 presentation before an audience at NASA's Ames Research Center's Director's Colloquium, addressing the status of the three essential elements to avoiding catastrophic asteroid impacts (video, 55:34) Charities based in California Planetary defense organizations Antoine de Saint-Exupéry Non-profit organizations based in the San Francisco Bay Area Mountain View, California Mill Valley, California Science and technology in the San Francisco Bay Area Planetary science Organizations established in 2002