Featured Story

Mangroves move inland as seas rise

Adapting to the damaging effects of climate change, plants are gradually moving to where temperatures are cooler, rainfall is greater, f...


'Planet killer' not in the stars

Space/Cosmic News
Photo: Trees lay strewn across the Siberian countryside 45 years after a meteorite struck the Earth near Tunguska, Russia in this 1953 photo.

By Marc Kaufman
Updated: March 09, 2007
The risk that an asteroid capable of wiping out humanity will crash into Earth is minuscule, new calculations suggest, but the chances of a smaller one destroying a city or setting off a catastrophic tsunami remain unclear and may be higher than previous estimates.
The calculations were presented at a four-day meeting in Washington this week, leading scores of scientists present to conclude that NASA needs to move aggressively to meet a congressional deadline for identifying most of the potentially hazardous smaller asteroids and to develop ways to deflect them if they home in on Earth.
But in a report released to Congress yesterday, the space agency said it does not have the funds to do the precautionary work, called for in its 2005 authorization bill.
Share this article
Copyright © 2018 Great Red Comet-Earth Science Chronicles • All Rights Reserved.
Template Design by BTDesigner • Powered by Blogger
back to top