A look at claims made in political campaigns and how they adhere to the facts.
US taxpayers supported troubled battery firms Ener1 and A123 Systems. Ener1 is now owned by a Russian oligarch. A Chinese company owns 80 percent of A123.
The $300-per-pound price is still five times costlier than traditional mining, and a Department of Energy-funded analysis found that to be infeasible in the current economy.
A new report out from Japan suggests that the new Nissan 2013 Leaf with offer a longer range, as well as a lower-cost model with a smaller battery pack. the car goes on sale in January, and will differ from units currently available in the US.
The Curiosity Mars rover, scheduled to land on Mars on Sunday night, comes with a laser mounted to its head. Why?
Plug-in electric vehicles are not selling as quickly in the US as boosters had hoped. A new report estimates that it will be 2018 before 1 million such vehicles are plying US roads.
Scientists hope to report the discovery of the Higgs boson particle by the end of 2012. Such a discovery would help explain the composition of the universe.
In Maryland, Virginia, and New Jersey, the pace of restoration has been 5 percent faster than after Irene. Are utilities better prepared to estimate how many crews they'll need?
Gas prices in the US fell less than a penny to $3.539 per gallon overnight Tuesday, dropping 16 cents below gas prices a year ago.
President Obama called GOP nominee Mitt Romney on Wednesday to congratulate him for winning enough delegates to secure the Republican nomination.