Tomahawk missile: the long arm of the war
The terrifying force of this sophisticated weapon is proving a key element in the allied assault on Libyan military targets. A triumph of technology?
Meltdown alert for Japan's nuclear reactors
As the Japanese are told to brace themselves for their most brutal ordeal since the Second World War, nuclear danger heads the long list of crises.
Tectonic shift, reactors and waves of hostility
In recent days, Japan has experienced destruction on an unprecedented scale. But as recovery gets underway, a new threat has appeared on the horizon.
Science and Engineering Week: Saving the world
As a special science week kicks off, we look at the world’s pressing problems and how scientists and engineers might help solve them.
Aliens – from science fiction to science fact?
A NASA scientist has stirred debate over life forms from outer space. He claims to have found fossils of unknown bugs inside meteorites. Is he for real?
A bullet through the heart of England
Proposals for a high-speed rail link across England have run into trouble. Campaigners say the new tracks will ruin countryside and wreck lives. Are the benefits worth the price?
In Jeopardy: computer challenges human race
A computer program is challenging humans in a popular quiz show this week... It's a giant leap forward for AI but questions persist over just how far machines can go...
With planned megacity, China thinks big
Size – twice as big as Wales. Population – forty-two million. Cost - 190 billion pounds. Meet China’s record-breaking solution to urban drift.
Nuke plant sabotaged in high tech strike
Iran’s quest for nuclear weapons has been delayed by a computer virus. But a major victory for cyber-warfare could unleash more such attacks.
Blood, pain and tweets in Tunisian revolt
After weeks of unrest in Tunisia, the President of twenty-three years has fled abroad. But can violence and chaos ever bring democratic change?
Teens reject parents as Facebook friends
An American survey shows many older teenagers ignore friend requests from parents. Something to hide or a bid for independence?
Another giant leap forward for virtual mankind
Yesterday Microsoft unveiled their new control system Kinect. Are these the videogames of the future? And could games ever get too good?