August 3, 2012 A bipartisan group of governors is pushing U.S. automakers to build a sedan that runs on compressed natural gas. The states say they will buy them in large quantities as they replace their current fleets. The governors say the cars would cost less to run, cut pollution and create jobs. And it would boost demand for natural gas, which has seen a plummet in price.
August 3, 2012 Adam Steltzner's father told him he wouldn't amount to much. He spent his youth barely passing school and "studying sex, drugs and rock 'n' roll," he says. Then he found a purpose in the stars — and led the team that dreamed a daring new scheme to get NASA's latest rover on Mars.
August 2, 2012 Democratic incumbent Claire McCaskill is facing a tough re-election fight. On Tuesday, Republicans will select their candidate to challenge her in the fall. All three major contenders are dyed-in-the-wool conservatives who have been battling in a wild and expensive race.
August 2, 2012 Drones are no longer the sole province of the U.S. military and intelligence agencies. They are starting to appear in U.S. skies. Police are employing them to fight crime. Enthusiasts are making their own at home. Rules governing their use are changing, and civil liberties groups are calling for privacy restrictions.