Obama unveils new car efficiency standards

US President Barack Obama on Friday unveiled a new deal with automakers on fuel economy standards that he said would be a crucial step towards reducing US dependence on foreign oil.

US, China agree to end 'super greenhouse gases'

China agreed Saturday with the United States to scale back production of "super greenhouse gases" used in refrigerators and air conditioners in a joint bid to fight climate change.

China takes over as US solar power firms fail

China's solar power firms are emerging as the industry's dominant force after the collapse of foreign competitors, but the new market leaders are already struggling with low prices and overcapacity.

Asteroid threat has Congress' attention

As if you don't have enough to worry about, consider the subject of a hearing last week on Capitol Hill: asteroids that may be headed toward Earth. The good news: NASA is tracking most of the largest asteroids - the kind ...

'Go for launch': SpaceX, NASA set for milestone mission

SpaceX's landmark launch to the International Space Station—the first crewed mission to blast off from US soil in almost a decade and a first for the commercial sector—was set to proceed on time Wednesday, following weather ...

Rumor-detection software IDs disputed claims on Twitter

A week after the Boston marathon bombing, hackers sent a bogus tweet from the official Twitter handle of the Associated Press. It read: "Breaking: Two Explosions in the White House and Barack Obama is injured."

Obama announces $2.4 bln grant for electric vehicles

President Barack Obama Wednesday unveiled a 2.4-billion-dollar funding boost for the development of new generation electric vehicles and slammed critics of his economic rescue plans.

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