Catastrophic Darkness: How Life Survives an Asteroid Impact

A dinosaur-killing asteroid may have wiped out much of life on Earth 65 million years ago, but now scientists have discovered how smaller organisms might have survived in the darkness following such a catastrophic impact. ...

UN warns of 'megadisasters' linked to climate change

The United Nations on Tuesday raised the prospect of "megadisasters" affecting millions of people in some of the world's biggest cities unless more is done to heed the threat of climate change.

Obama moves to curb road-building in forests

(AP) -- The Obama administration is ordering a one-year moratorium on most road-building and other development on about 50 million acres of remote national forests.

UN: Growth of slums boosting natural disaster risk

(AP) -- The rampant growth of urban slums around the world and weather extremes linked to climate change have sharply increased the risks from "megadisasters" such as devastating floods and cyclones, a U.N. report said Sunday.

Space junk raises risks for Hubble repair mission

(AP) -- Space shuttle Atlantis is now in a rough orbital neighborhood - a place littered with thousands of pieces of space junk zipping around the Earth at nearly 20,000 mph. There are more pieces of shattered satellites ...

Study Finds 'Pre-Existing Condition' Fueled Killer Cyclone

(PhysOrg.com) -- A "pre-existing condition" in the North Indian Ocean stoked the sudden intensification of last year's Tropical Cyclone Nargis just before its devastating landfall in Burma, according to a new NASA/university ...

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