Investigators searching for the cause of Friday's crash at the Reno Air Races are focusing on a critical part that may have failed. Whatever the cause, the future of the popular air races is in question.
Green energy leaders say threat of federal budget cuts creates uncertain future for green energy in the US.
The only Harry Reid-Sharron Angle debate is set for Thursday. The focus is Nevada's troubled economy, but the race is also a referendum on Obama and a test of 'tea party' power.
The meteor in Wisconsin seen Wednesday night appeared as a fireball in the sky, shaking the ground with its accompanying sonic boom. It's not known if the meteor landed or burned up.