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The dose of radiation an astronaut would experience on a trip to Mars is higher than the annual limit set for workers at nuclear power plants. But Mars enthusiasts say the radiation threat isn't high enough to cancel the trip.

Arpaio lost a civil suit last week but is expected to dodge an effort to recall him. Although the politics of immigration are changing in Arizona, the growth of the Hispanic population has not yet translated into a political force that can dislodge him.

For centuries, the French have been sans a term for "French kiss." The latest edition of a popular dictionary attempts to rectify that.

The clock is ticking for those who hope Illinois becomes the 13th state to legalize same-sex marriage. After passing the Illinois Senate in February, a bill to legalize gay marriage has stalled in the House. Backers are trying to get it through before the Legislature adjourns Friday night.

Would you like to know the life history of that steak before you eat it? Technology exists to give you that information, at least in Michigan, where the state government requires all cattle to carry an electronic tag for tracking purposes.

Local officials in Washington D.C., are on the verge of approving two high-tech radiation facilities for treating cancer at a total cost of $153 million. The treatment these hospitals would offer costs twice as much as standard radiation, but hasn't been shown to work any better for most cancers.

Yanira Maldonado of Goodyear, Ariz., was taken into custody last week after 12 pounds of marijuana were found under her seat on a bus in Mexico. Her case drew international attention. She was released late Thursday after a judge saw video of her boarding the bus without the drugs.

Researchers who are searching for the famed aviator's remains and the wreckage of her plane say sonar images taken last year show an anomaly that just might be Earhart's Lockheed Electra. Earhart and navigator Fred Noonan disappeared in the mid-Pacific in 1937.

New video has emerged of Tuesday's freight train derailment near Baltimore, Md., that caused a huge explosion and led to the area being evacuated. Many people captured the crash's aftermath on camera.

Trustees now expect the program's fund will be depleted in 2026. Meanwhile, Social Security's trust fund is still expected to go dry in 2033. Both programs' finances need to be reformed, experts agree.