NASA Logo
National Aeronautics and Space Administration

Office of Policy and Plans

NASA History Office


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.


Cosmic Earth Impacts

Bibliography


 History Homepage

 Search NASA History

Updated November 13, 2001


Roger D. Launius, NASA Chief Historian
Steve Garber, NASA History Web Curator
For further information contact the NASA History Office