Government and BP estimates of the amount of oil spewing into the Gulf of Mexico are too low, say scientists. Some equate the flow to one Exxon Valdez spill every five days.
The five-year White House drug policy emphasizes prevention and treatment, but it could do even more.
Although the XENON100 experiment hasn't yielded success yet, scientists say they will detect dark matter soon.
Iran's President Mahmoud Ahmadinejad continues to deliver inflammatory speeches that leave listeners wondering what he really means. Here are seven examples of his contradictory remarks.
Overheated rhetoric from Sarah Palin, Glenn Beck, and other 'tea party' activists may create barriers to serious conversation, but it's not seditious. When it comes to weighing free speech versus sedition, we should err on the side of freedom.
Alan Brinkley looks beyond the stereotypes to create a more nuanced portrait of magazine publisher Henry Luce.
'In the Realm of the Buddha' offers a rare glimpse into Tibet's sacred art and reveals a history largely lost.
With opposition leaders claiming they've formed their own government in Bishkek and reports that Kyrgyzstan President Kurmanbek Bakiyev has left the country, What will happen to the US use of the Manas air base?
China signals it will consider a new UN resolution on Iran sanctions, in a bid to pressure Tehran to verify that it is not trying to develop nuclear weapons. Is China expecting something from the US in return for its cooperation?