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Comets
 Websites presented in alphabetical order Asteroid and Comet Impact Hazards 
 This site is devoted to current news and information about the possibility of asteroids and comets hitting the Earth. Listings of Near Earth Objects (NEO) are given. Several scientific reports are posted. Artistic renderings of past and future object impacts on the Earth are available. An informative "FAQ on Asteroid and Comet Impacts" puts the current media fascination with this topic into perspective. A fascinating and informative look into the "what if." Produced by the NASA Ames Space Science Division. http://impact.arc.nasa.gov/ Topics: Astronomy Last updated Nov 2, 2002 Comet 17P/Holmes
Photos and description of the outburst of Comet 17P/Holmes during late October 2007, visible to the naked eye near the constellation Perseus in the northeastern evening sky. Provides an overview of the comet discovery, history, and current expansion. From the website companion to the Cometography print volumes. http://cometography.com/pcomets/017p.html Topics: Astronomy Last updated Nov 8, 2007 Comet Hale-Bopp: The Great Comet of 1997
The official NASA Jet Propulsion Laboratory site for information about Comet Hale-Bopp, an unusually bright comet discovered on July 23, 1995 that provided a great celestial show as it approached the Sun in April, 1997. Contains news articles, animations, and over 5,000 images of the comet. http://www.jpl.nasa.gov/comet/ Topics: Astronomy Last updated Oct 9, 2005 Deep Impact
In 2005, NASA scientists will crash a spaceship into a comet in order to study the effect of the impact and to provide "first-ever views deep beneath a comet's surface." Find background information, news, a mission timeline, general information about comets and comet missions, and technological details of the flight system. Includes educational materials and activities for children. Searchable. From the NASA Jet Propulsion Laboratory. http://deepimpact.jpl.nasa.gov/ Topics: Astronomy Last updated Jul 2, 2005 ESA: Science & Technology: Rosetta
The purpose of the European Space Agency (ESA) Rosetta Orbiter is "to study the origin of comets, the relationship between cometary and interstellar material and its implications with regard to the origin of the Solar System." The site provides a description of the orbiter, an overview of its flight (including "its first Earth swing-by" on March 4, 2005), news, summaries of related publications (with some links to full text), images, and a glossary. http://sci.esa.int/science-e/www/area/index.cfm?fareaid=13 Topics: Astronomy, Geography, Technology Last updated Mar 15, 2005 Great Comets in History
This site features a table that "is an attempt to list the great naked-eye comets that have been reported. With the single exception of periodic comet Halley, all the tabulated comets have passed through the inner solar system either for the first time or the intervals between their returns are measured in thousands or millions of years." Includes date, name, and apparent brightness. From the Jet Propulsion Laboratory/California Institute of Technology. http://ssd.jpl.nasa.gov/?great_comets Topics: Astronomy Last updated Oct 31, 2007 Lunar and Planetary Science
Compilation of National Aeronautics and Space Administration (NASA) materials on individual planets, the moon, asteroids, and comets. Find links to fact sheets, current and past missions, images and data, and other relevant publications. Also includes links to related websites. From NASA. http://nssdc.gsfc.nasa.gov/planetary/ Topics: Astronomy Last updated Sep 19, 2007 NASA Lunar and Planetary Science: Comets
Collection of documents about comets (celestial bodies that orbit the sun), specific comets (such as Hale-Bopp), and NASA missions related to comets, including Deep Impact, Rosetta, and Stardust (which returned samples for analysis from the comet P/Wild 2 in January 2006). Also includes links to material on meteors and meteorites. From the National Aeronautics and Space Administration (NASA) National Space Science Data Center. http://nssdc.gsfc.nasa.gov/planetary/planets/cometpage.html Topics: Astronomy Last updated Jan 17, 2006 Near-Live Comet Watching System
Contains images of comet Hale-Bopp from October 1996 to February 1999. http://comet.hq.nasa.gov/comet/ Topics: Astronomy Last updated May 22, 2005 Stardust: NASA's Comet Sample Return Mission
Extensive information about Stardust, "the first U.S. space mission dedicated solely to the exploration of a comet, and the first robotic mission designed to return extraterrestrial material from outside the orbit of the Moon." Features background and educational material, news about the return capsule (which landed in Utah in January 2006), photos and drawings, animations and videos, interviews, and related information. From the NASA Jet Propulsion Laboratory at the California Institute of Technology. http://stardust.jpl.nasa.gov Topics: Astronomy Last updated Jan 18, 2006 |
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