Washington, Jan 12: The US Defence Ministry is “extremely concerned” about al Qaeda operations in Pakistan’s tribal areas bordering Afghanistan, military chief Admiral Michael Mullen has said.

“We know it is having a significant impact, not just in Afghanistan, but certainly there are concerns about how much they have turned inward inside Pakistan. I am extremely concerned about this,” he told reporters.

Washington, Jan 11: The Environmental Protection Agency (EPA)

Washington, January 11: A Texas-based company has created a device that can turn air into drinking water.

London, Jan 11: Scientists have significantly reduced the chances of an asteroid striking Mars on 30 Janua

Washington, January 11: A study led by Harvard University researchers has revealed that Earth is at the lower end of the size range needed for plate tectonics, which are believed to be vital for st

Washington, Jan 11: An international team of scientists, which include signatories from India, have issued a warning that it is too early to sell carbon offsets from ocean iron fertilization.