Five-year-old Lenny Popova, of Arlington, Va. inspects the teeth of a Tyrannosaurus rex at the National Zoo, in October 2000. The Tyrannosaurus, meaning 'tyrant lizard' lived in Western North America during the last part of the Cretaceous Period, about 68 to 65 million years ago.
The Plastiki, a boat made from recycled plastic, is sailing from San Francisco to Sydney to raise awareness about ocean-borne plastic litter, particularly in the Pacific garbage patch.
Scientists say history has proven that when the Eyjafjallajokull volcano erupts the Katla volcano erupts too.
Formula One car maker McLaren will enter the commercial market in 2011. Its first offering is the McLaren MP4-12C.
New study shows domesticated dogs trace ancestry to Middle East.
A UN-Habitat report on the state of the world's cities found that 227 million people have moved out of urban slum conditions over the past decade. Half the world's population now lives in cities.
In the upcoming hurricane season, two or three storms will be major events along the coastal US, according to AccuWeather.com.
NATO reform can’t come fast enough. European leaders must step up and persuade the public of the importance of the Afghan mission and the threat of Al Qaeda.