This category is for sites on defending the planet from global threats such as possible asteroids, comets, or artificial space debris.

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BBC News: Government Prepares for Space Impact
The UK government is to establish a panel of experts to advise on the risk of the Earth being hit by an asteroid or comet, and plans for evacuation and/or deflection.
Impact
Describes the threat of a comet impact with Earth and provides a plan of action to survive a large impact.
Impact Parameters
Online calculator for cratering effects of hypothetical asteroid impacts.
Meteor Defense
An argument for reducing global tension by developing a defense against impacts with Near Earth Objects.
The SpaceGuard Centre
National focus in the UK for studies into the threat posed to the Earth by collisions with asteroids and comets.
China Daily: Dangerous Space Rocks Under Watch
Astronomers say they are well on their way to finding every asteroid that poses a threat. (April 08, 2004)
U.S. Summons Experts to Draft Asteroid Defense Plan
A Cincinnati Post news story about a meeting called by the U.S. government on the chances of an asteroid strike and a possible defense for it. (June 07, 2002)
[Soldier Mozilla]
Last update:
August 20, 2014 at 13:39:54 UTC
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