The black of space is slashed with silvered streaks of stars as two fiery galaxies merge in a collision of giants. A massive pillar of dust glows in crimson in the glare of hot stars, and another

A new, radical model is no beginning or end of time, only an indefinite cycle of Big Bangs that remake the universe endlessly. "We may have misunderstood the nature of time," said a cosmologist. "The

Exposure to arsenic results in heart diseases

Authorities clamp down on vehicles over 15 years old

US waterways highly contaminated by a cocktail of drugs

India all but endorses controversial US policy on greenhouse gases

The World's largest study of the links between genes and disease is to go ahead with

Last week the concerns of the developing world found place in a landmark set of guidelines passed at the UN Convention on Biodiversity in the Hague. In all 166 countries, including India, adopted

The first three months of this year were the warmest globally since records began in 1860 and probably for 1,000 years, British scientists said on Thursday. Experts said the record for January,