National Aeronautics and Space Administration
National Aeronautics and Space Administration
Office of Policy and Plans
WEB IMPACT LINKS
NASA Affiliated
Asteroid and Comet Impact Hazards - http://impact.arc.nasa.gov/index.html
NASA Ames Science Division comprehensive site featuring congressional testimony,
survey reports, fact sheets, and links.
LONEOS - http://asteroid.lowell.edu/
Asteroid Observing Services at Lowell Observatory in Flagstaff, AZ led by
Dr. Ted Bowell with NASA funding.
NASA Program Status - http://www.hq.nasa.gov/congress/pilcher5-21.html
On May 21, 1998 NASA's Science Director for Solar System Exploration Dr.
Carl Pilcher presented testimony before the House Subcommittee on Space
and Aeronautics. Included in his testimony is a program status report of
NASA's ongoing ground-based NEO (Near Earth Orbit) search programs.
NASA Fact Sheet - http://www.hq.nasa.gov/office/pao/facts/HTML/FS-023-HQ.htm
Summarizes definitions for celestial bodies such as comets and asteroids,
what NASA is doing to study them, and how much of a threat they really are.
NEAT System - http://huey.jpl.nasa.gov/~spravdo/neat.html
Near Earth Asteroid Tracking (NEAT) system operated by NASA's Jet Propulsion
Laboratory (JPL) in conjunction with the U.S. Air Force on Mt. Haleakala,
Maui, HI.
POETRY's "Ask the Scientist"- http://image.gsfc.nasa.gov/poetry/ask/ametcom.html
NASA's "Public Outreach, Education, Teaching and Reaching Youth (POETRY)"
program offers opportunities to "Ask the Scientist" questions
related to comets and asteroids.
The Spacewatch Project- http://www.lpl.arizona.edu/spacewatch/index.html
The University of Arizona's Spacewatch Observatory led by Dr. Tom Gehrels
with funding from NASA.
JPL's Earth Close-Approach Tables- http://ssd.jpl.nasa.gov/ca_home.html
This useful page is part of JPL's site on solar system dynamics.
OTHERS
Impact - http://personals.galaxyinternet.net/tunga/
Contains a plan for asteriod and comet impact survial as well as answers to frequently asked questions.
Lists & Plots: Minor Planets - http://cfa-www.harvard.edu/iau/lists/MPLists.html
Responsible for the collection, computation, checking and dissemination
of astrometric observations and orbits for minor planets and comets. Includes
lists of closest approaches to Earth.
Sky & Telescope's Impact Hazards Web Site - http://impact.skypub.com/
The SPACEGUARD Foundation - http://cfa-www.harvard.edu/~marsden/SGF/
An association aimed at the protection of the Earth environment against
the bombardment of objects of the solar system (comets and asteroids).
Space Shield Foundation (SSF) - http://www.ch70.chel.su/town/spshf/
Private Russian foundation promoting scientific research and technology
development on hazards due to asteroid and comet impacts.
Tunguska: Cosmic Mystery of the Century - http://www.galisteo.com/scripts/tngscript/default.prl
Combines research from a number of global (and many Russian) scientists
with a bulletin board and other information dealing with the Tunguska event.
World Impact Crater Database - http://gdcinfo.agg.emr.ca/cgi-bin/crater/crater_table?e
Online source for known impact structures.
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Updated November 13, 2001
