London, Feb 7: A new study has indicated that lower, chronic levels of nitrogen pollution has much more substantial long-term effects on the atmosphere than previously believed.

London, Feb 7: A new study has revealed that a spiral galaxy, which lies 15 million light years a

Washington, February 7: A multi-institutional study suggests that positron emission tomography (PET) is more

London, Feb. 7: Two Russian scientists have claimed that they are close t to creating a time machine.

Washington, Feb 7: The discovery of crayfish body fossils and burrows in Victoria, Australia, has provided the first physical evidence that crayfish existed on the continent as far back as the Meso

London, February 7: University of Arizona optical scientists say that they have devised a way to create three-dimensional holographic displays that can be erased and rewritten within minutes.