A protester blocks an Atlanta street during a rally protesting Georgia's new immigration law in June 2011. Now, the state's lawmakers are considering a bill that would also ban students here illegally from attending all public colleges.
Last year, several states passed strict laws aimed at cracking down on illegal immigration. Those laws are now being challenged in federal court, and next month the Supreme Court is set to hear arguments on Arizona's immigration law — but that hasn't stopped some Southern states from moving forward with more restrictions.
If you walk through the desert in southern Arizona you can find evidence of a major migration. Water bottles, shoes, food wrappers — these are some of the things left behind by the thousands of people who try to cross the border between Mexico and the United States every year.
For some people, the items are trash to be cleaned up; for others, they offer a window into a perilous voyage.
Lab testing of the LBT adaptive secondary mirror system.
Credit Large Binocular Telescope
A telescope in Arizona has taken some of the clearest pictures ever of distant celestial objects, including the first images of the innermost planet in a planetary system 127 light years from Earth. They achieved this astronomical tour de force using something called adaptive optics, a technique that eliminates the blurring caused by the Earth's atmosphere.
Every so often, pieces of heaven crash into Earth.
They can come from our own solar system, or millions of light years away. Few of us are lucky enough to get our hands on one of these space rocks. But for meteorite hunters and dealers such as Ruben Garcia, touching a piece of outer space is a daily routine.
The Best Hunting Grounds
One of Garcia's favorite spots to go meteorite hunting is an enormous dry lake bed in southern Arizona.
You might have thought that with the feds knocking on his door over what they say are numerous violations of civil rights, Maricopa County (Ariz.) Sheriff Joe Arpaio would be busy planning his defense.
Instead, the controversial sheriff is taking the fight to them. Arpaio announced that he was ready to release the findings of his investigation into the authenticity of President Obama's birth certificate.