Chávez has announced his support for the Iranian president's claim of election victory. The two leaders have developed close ties based on mutual animosity to the US.
Scientists use tiny organisms to create fuel, viruses to make batteries.
In an abrupt turn, the Venezuelan president reinstated the program two days after its suspension.
Despite President Bush's strong words Tuesday, few levers exist to force Zimbabwe's leader out.
Now there’s a move to keep it that way – and perhaps bring North and South Korea closer together.
Scientists have sequenced most of the genome of a creature that vanished from Earth about 4,000 years ago.
250 million years ago, rising greenhouse-gas levels set off catastrophic changes.