Worlds of David Darling
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MEGACATASTROPHES




   • Apophis

   • back contamination
   • Betelgeuse: What will happen when it explodes?
   • black hole

   • Chicxulub Crater
   • cosmic collisions, biological effects
   • Cretaceous-Tertiary boundary

   • Doomsday Machine

   • earthquake
   • Elenin, Comet
   • extraterrestrial civilizations, hazards to

   • gamma-ray burst
   • gray goo

   • ice ages

   • hypernova

   • LINEAR (Lincoln Near Earth Asteroid Research) program

   • mass extinction
   • magnetic field reversal
   • megacatastrophe

   • near-Earth asteroid
   • near-Earth object

   • potentially hazardous asteroid

   • Siding Spring Survey
   • Snowball Earth
   • Spaceguard Foundation
   • Spacewatch Project
   • supernova

   • Torino scale
   • tsunami
   • Tunguska phenomenon

   • volcanic explosivity index (VEI)

Related category

   • SCIENTIFIC MYSTERIES