WASHINGTON, FEB 21: A navy missile soaring 210 kilometres above the Pacific smashed a dying and potentially deadly US spy satellite and probably destroyed a tank carrying 450 kilograms of toxic fuel, officials said. Officials had expressed cautious optimism that the missile would hit the satellite, which was the size of a school bus. But they were less certain of hitting the smaller, more problematic fuel tank, whose contents posed what Bush administration officials deemed a potential health hazard to humans if it landed intact. In a statement late on Wednesday announcing that the Navy missile struck the satellite, the Pentagon said, "Confirmation that the fuel tank has been fragmented should be available within 24 hours.' It made no mention of early indications, but a defence official close to the situation said later that officials monitoring the collision saw what appeared to be an explosion, indicating that the fuel tank was hit. The USS Lake Erie, armed with an SM-3 missile designed to knock down incoming missiles

Scientists have developed the mother of all laser beams

Washington: American warships are moving into position to try to shoot down an out-of-control spy satellite as early as Wednesday before it tumbles into the Earth's atmosphere, Pentagon officials said here on Tuesday. Armed with two specially modified interceptor missiles, the

In March last year, two million Sydney residents switched off lights and appliances for an hour. The idea was to send a message about arguably the greatest threat facing the planet: global warming. The move clearly captured the imagination of people across the world, because this year 23 other cities

US lawmakers have said that the nuclear deal with India cannot go through the US Congress if it does not reach there by June. The warning was sounded by a group of influential senators

If two scientists at Los Alamos National Laboratory are correct, people will still be driving gasolinepowered cars 50 years from now, churning out heat-trapping carbon dioxide into the atmosphere

Less than a week after concerns were raised in the Senate Foreign Relations Committee on the Bush Administration's efforts to obtain a

Canberra: As many as 30 million people are tipped to switch off lights and televisions around the world to help fight climate change with 24 cities joining Earth Hour on March 29, environment group WWF said on Wednesday. Following last year's Earth Hour in Australia, where 2.2 million Sydneysiders powered-down for an hour, cities including Atlanta, San Francisco, Bangkok, Ottawa, Dublin, Vancouver, Montreal and Phoenix have also signed on, WWF said.

New York: Kids who live in neighborhoods with heavy traffic pollution have lower IQs and score worse on other tests of intelligence and memory than children who breathe cleaner air, a new study shows. The effect of pollution on intelligence was similar to that seen in children whose mothers smoked 10 cigarettes a day while pregnant, or in kids who have been exposed to lead, Dr Shakira Franco Suglia of the Harvard School of Public Health in Boston, the study's lead author, said.

Washington: Physicists have developed a new atomic clock that surpasses previous records for accuracy of current US time standard, making it the world's most accurate atomic clock. Developed by physicists at JILA, a joint institute of the Commerce Department's National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder, the new clock is based on thousands of strontium atoms trapped in grids of laser light.