Science & Technology

Toyota and BMW have formed an alliance to work on fuel cell cars. So have Daimler, Ford, and Nissan, with hopes of having cars on the road by 2017. But why now, and what obstacles still stand in the way? Jennifer Kurtz discusses the current state of hydrogen fuel technology.

A Smoking Gun report about the hacking of several email accounts belonging to members of presidents George W. and George H.W. Bush's family and some family friends has prompted a criminal investigation.

The Houston Chronicle says that Bush family spokesman Jim McGrath confirmed an investigation is under way, but declined further comment.

An asteroid the size of an office building will zoom close by Earth next week, but it's not on a collision course, NASA says.

Still, some people think this near-miss should serve as a wake-up call.

"It's a warning shot across our bow that we are flying around the solar system in a shooting gallery," says Ed Lu, a former astronaut and head of the B612 Foundation, a nonprofit dedicated to protecting humanity from asteroids.

The asteroid known as 2012 DA14 was first spotted last year by astronomers in Spain. It's thought to be about 150 feet across and made of rock.

Iran's government on Thursday made clear it has no interest in direct talks until the U.S. eases sanctions that have been squeezing Iran's economy. But the Obama administration isn't budging and says the ball is in the Iranians' court.

The suspicion that Iran wants to make a nuclear weapon is the rationale for the sanctions as well as for veiled threats of U.S. or Israeli military action if those sanctions fail.

Before they end up filleted and sautéed on your dinner plate, salmon lead some pretty extraordinary, globe-trotting lives.

After hatching in a freshwater stream, young salmon make a break for the ocean, where they hang out for years, covering thousands of miles before deciding its time to settle down and lay eggs in their natal stream.

So how do these fish find their way back to their home river?