An alarming engineering report on the 140-mile (225-kilometer) dike around Florida's Lake Okeechobee has prompted emergency management officials to prepare evacuation plans for 40,000 residents living near the lake.

If overall global warming exceeds 5.5°F (3°C), many parts of the world are likely to see substantially increased risks of drought, floods, and wildfires, climate scientists say.

Although [India's] space program is a civilian effort, it is a symbol of national excellence -- and that makes it an ideal target. But behind the several layers of security, the Indian Space Research Organisation, or ISRO, is abuzz with new projects and excitement.

Nearly 2,500 astronomers from 75 countries gathered here Monday to come up with a universal definition of what qualifies as a planet and possibly decide whether Pluto should keep its planet status.

TechTV is back. Sort of.

The youngest star ever found near the Milky Way's centre is deepening a mystery over how stars could take shape in such a turbulent environment.

A simple skin test that enables doctors to diagnose the early signs of Alzheimer's disease could be available within five years, researchers say. The test could allow doctors to intervene early on and prevent major brain damage, they say.