Striking the earth a hundred times each second, the torrent of electricity known as lightning can pack hundreds of millions of volts in a flash--energy that will likely remain forever beyond our reach

Long-standing rivalry between Turkish and Greek Cypriots threatens to erupt again on this sun-drenched Mediterranean island as the UN weighs cutbacks in its peacekeeping forces

Amid public clamor over the plight of animals, zoos are being transformed from menageries to modern arks. Innovative exhibits and breeding programs bring praise--and new concerns.