An unprecedented asteroid scare in January 2004 has prompted NASA to set up a formal process for notifying top officials in the future of any impending impacts.

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.

Scientists gather to discuss ways of aggressively defending the planet from an asteroid, including detonating nukes in space.

Describes the threat of a comet impact with Earth and provides a plan of action to survive a large impact.

Online calculator for cratering effects of hypothetical asteroid impacts.

An argument for reducing global tension by developing a defense against impacts with Near Earth Objects.

National focus in the UK for studies into the threat posed to the Earth by collisions with asteroids and comets.

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.

Article on a meeting of space experts regarding finding and destroying a potential threat from an asteroid.