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http://astrosun.tn.cornell.edu/staff/bottke/index.html http://www.lpl.arizona.edu/faculty/lewis.html http://physics.open.ac.uk/~ajh47/arps.html http://wwwflag.wr.usgs.gov/USGSFlag/Space/nomen/asteroids/astesysTOC.html http://neat.jpl.nasa.gov/ http://neo.jpl.nasa.gov/neo/pha.html http://impact.arc.nasa.gov/ http://impact.arc.nasa.gov/torino/index.html http://www.space-frontier.org/PROJECTS/THE_WATCH/ http://www.ssi.org/ http://www.permanent.com/ http://www.seds.org/~rme/nea.htm http://www.space-frontier.org/ http://www.space.com/spacewatch/ikeya_zhang_sidebar_020309.html http://skyandtelescope.com/observing/objects/comets/article_477_1.asp http://www.spaceadventures.com/press/031402.html http://www.spaceadventures.com/press/031402b.html http://www.aviationnow.com/avnow/news/channel_space.jsp?view=story&id=news/ssubo0314.xml http://www.spacetoday.net/ http://www.spaceflightnow.com/index.html http://www.floridatoday.com/news/space/special/station/index.htm http://www.shuttlepresskit.com/index.html http://www.spaceflight.nasa.gov/station/index.html http://www.boeing.com/defense-space/space/spacestation/ http://www.russianspaceweb.com/ http://liftoff.msfc.nasa.gov/toc.asp?s=Tracking http://spaceflight.nasa.gov/realdata/tracking/ http://spaceflight.nasa.gov/realdata/sightings/index.html http://www.spacetoday.net/ http://www.spaceflightnow.com/index.html http://www.nasawatch.com/index.html http://dansimmons.com/ds/index.html http://dansimmons.com/ds/index.html http://www.erinyes.org/simmons/ http://www.erinyes.org/simmons/chameleon.html http://www.erinyes.org/simmons/profile.html http://www.erinyes.org/simmons/resources.html http://www.eventhorizon.com/sfzine/chats/transcripts/pages/022599.html http://www.bookpage.com/9708bp/firstperson3.html http://www.writerswrite.com/journal/sep01/simmons.htm http://www.salon.com/books/int/2002/02/27/simmons/index.html http://www.scifi.com/sfw/issue181/interview.html 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