Related Why Files
Asteroid Searchers Streak Ahead, Robert Irion, Science, 14 August, 1998, pp. 894-5.
Crying Wolf, (on the March scare) Robert Naeye, Astronomy, September, 1998, p. 61.
Dynamical Lifetimes of Objects Injected Into Asteroid Belt Resonances, Brett Gladman et al, Science, 11 July, 1997, pp. 197-201.
The End of Evolution: On Mass Extinctions and the Preservation of Biodiversity, Peter Ward, Bantam Books, 1994.
Impact Hazards: Truth and Consequences, Gerrit Verschuur, Sky and Telescope, June, 1998, pp. 26-34.
Isotopic Evidence for the Cretaceous-Tertiary Impactor and Its Type, A. Shukolyukov and G. W. Lugmair, Science, 30 October, 1998.
Lunar Prospector Probes Moon's Core Mysteries, Robert Irion, Science, 4 Sept. 1998, pp. 1423-4.
Night Comes to the Cretaceous: Dinosaur Extinction and the Transformation of Modern Geology, James Powell, W.H. Freeman, 1998.
When North America Burned, Carl Zimmer, Discover, Feb. 1997, pp. 26 ff.
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Web
Here's what happened when Comet Shoemaker-Levy zapped Jupiter.
Home of JPL's Near-Earth Asteroid Tracking -effort.
The Near-Earth Objects page.
Planets found beyond the solar system(?)
Here's a statement on the mondo 1998 asteroid scare.
A nice portrait of asteroid 243 Ida.
Absolutely spacy: What else can you say about the Jet Propulsion Laboratory?
The amazing promise of X-ray astronomy.
Meet the responsible parties -- space cadets, all!
Spaceguard wants to guard us from -- you guessed it.
