y in meteoric form. But, as Verschuur points out, the greatest threat to life on Earth are asteroids and comets. Comet Swift-Tuttle, for example--far larger than the one that killed off the dinosaurs--is due to pass through Earth's orbit in 2126. This riveting book tells of asteroids and comets that have struck Earth and describes the efforts being made to avert disaster. 40 halftones. 3 linecuts.
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y in meteoric form. But, as Verschuur points out, the greatest threat to life on Earth are asteroids and comets. Comet Swift-Tuttle, for example--far larger than the one that killed off the dinosaurs--is due to pass through Earth's orbit in 2126. This riveting book tells of asteroids and comets that have struck Earth and describes the efforts being made to avert disaster. 40 halftones. 3 linecuts.
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