Pentagon officials estimate they can save $100 billion over the next five years by reining in skyrocketing contract costs.

As the space shuttle program folds, the House and Senate – and broader spaceflight community – have struggled to reach consensus on NASA's new human spaceflight focus.

Oil spills in recent weeks, from Canadian-owned pipelines that supply Midwest refineries, are another sign of nation's aging infrastructure. Latest spill expected to raise Midwest gas prices by 30 cents a gallon for several weeks.

AP - Tea party-supported candidates in New Hampshire and Delaware seized early leads over establishment-backed rivals in Republican senatorial races Tuesday, the finale to a primary season marked by economic recession and political upheaval.

AP - Congressional Democrats on Tuesday wrestled over whether to abandon President Barack Obama's tax cut plan, with some House moderates joining Republicans in calling for an extension of Bush-era breaks for the wealthy as well as middle-income earners.

AP - In just a few dizzying hours, American Sarah Shourd exchanged a cell in Tehran's Evin Prison for a private jet crossing the Persian Gulf on Tuesday, after an apparent diplomatic deal to cover a $500,000 bail and secure a release that seemed in jeopardy from the start.