Comets, Meteors, and Asteroids
| Asteroid Doomsday Countdown Clock - how much time before asteroid 1997XF11 reaches Earth in 2028? The count-down clock will let you know. With articles and links. | |
| Discovery Photos of 1997 XF11 - from Spacewatch. | |
| Comet Hale-Bopp [halebopp.com] - "official" Comet site. | |
| Comet Hale-Bopp at the University of Hawaii Institute for Astronomy | |
| HB Magazine - frequent updates on the comet. | |
| Speciale Hale-Bopp - sito italiano dedicato interamente alla cometa Hale-Bopp, prodotto dal Pieri Astronomy Observatory. | |
| LASCO Comet Hyakutake Page [navy.mil] | |
| Comet Shoemaker-Levy 9 (NSSDC) | |
| Comet Shoemaker-Levy 9 [smplanet.com] - An on-line activity aimed at exploring Internet resources related to the SL9 impact. | |
| Lesson Plan: The Impact of Shoemaker-Levy 9 - helps students learn about both science and Internet research. | |
| 1908 Siberia Explosion - reconstructing the 1908 Tunguska explosion from eyewitness accounts. | |
| Asteroids: Deadly Impact | |
| Barringer Meteor Crater - meteors and impacts. Games, science, and history. | |
| Comets, Culture, & Currency - direct social and physical impact of comet debris during the holocene and long term impact of rationalizing such phenomena. | |
| Meteorite Central - site offers meteorite information, educational articles, a mailing list, chat room, and meteorites for sale. | |
| Small Comets - A series of spectacular images produced by cameras on NASA's Polar spacecraft have confirmed that Earth is being pelted by thousands of small comets each day. | |
| Deep Space 1 - new technologies demonstration mission scheduled to fly by a near-Earth asteroid and encounter Comets Wilson-Harrington and Borrelly. | |
| Giotto - mission was designed to study Comet P/Halley, and it also studied Comet P/Grigg-Skjellerup during its extended mission. | |
| International Meteor Organization (IMO) - information about meteor observing techniques, analyses and recent results from world-wide data, a list of meteor showers, glossary, meteor-related projects, addresses, and more. | |
| Spanish Meteor Society | |
| Weak Impact: The 1998 Perseid Meteor Shower - includes the hazards of impact and how to view the Perseids. | |