Mars used to be like Earth, but...

But it did not have a protective magnetic field to shield the surface from ionising radiation. NASA's Mars Curiosity rover has discovered high levels of manganese oxides in Martian rocks,......

'US school shooter and his mother visited gun ranges'

Adam Lanza, the 20-year-old who slayed 26 people, including 20 children, and his mother both spent time at a gun range in Connecticut, said US media reports. Investigators have determined Lanza......

Day after US shooting, cops try to read gunman's mind

A day after a lone attacker went on a shooting spree at a Connecticut school killing 20 kids and six adults, US police and law enforcement agents were on Saturday trying to establish the motive......

US school shooting shocks the world

Shocked at the horrific shooting at a US elementary school that left 20 small children and six teachers dead, world leaders on Saturday said it was a "senseless and incomprehensible act of evil",......