The US tsunami monitoring center on Friday widened a warning to virtually the entire Pacific coast, including Australia and South America, after a massive earthquake in Japan.

Scientists have stumbled upon an exciting find — microbes from the Jurassic era are still alive in salt crystals.

Two men accused of attacking a Sikh taxi driver in November have entered no-contest pleas in a California court, with one man admitting that his attack was a hate crime.

US secretary of state Hillary Clinton has expressed concern over the unabated violence raging in Libya and called for peaceful resolution to the crisis, reiterating America's support to the people of the strife-torn nation.

The administration of President Barack Obama has come under mounting pressure to arm rebels facing an emboldened and regrouping military, amid charges Washington missed recent chances to oust Libya's strongman.

Voicing concern over the safety of its national Raymond Davis arrested in Lahore for double murder, the US has asked Pakistan to take appropriate security measures in the wake of multiple death threats received by him.

The fate of hundreds of Indian students of a sham US university not implicated in the investigation of visa fraud by the closed school is under 'active discussion' by US authorities.

Flexing its military muscle, the United States sent warships toward Libya on Tuesday as it sought to keep pressure on Muammar Gaddafi to relinquish his four-decade grip on power.

Citing growing competition from India and China, US President Barack Obama has warned against more tax breaks to the wealthy to find resources for investment in education, innovation and infrastructure.

Radiation from black holes can push away the gas they feed on, a new study has revealed, explaining why black holes go quiescent.
An international team, led by University of Sydney, has found that a black hole creates a “wind” which pushes its own “food” of dust and gas out of reach, using Gemini North telescope in Hawaii.