Arizona Republican Gov. Jan Brewer leaves a podium at the state Capitol in Phoenix after responding to President Obama's immigration speech on June 15. Brewer said the speech represented a "pre-emptive strike" aimed at what then was an upcoming Supreme Court ruling on Arizona's immigration law. Matt York/AP hide caption

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It's great to have your own private island like this one in the Caribbean, unless there's a hurricane bearing down. Christian Wheatley/iStockphoto.com hide caption

itoggle caption Christian Wheatley/iStockphoto.com

Homeownership will be out of reach for many younger adults in the U.S., according to several sociologists and housing analysts, leading to a rise in the number of renters. Scott Olson/Getty Images hide caption

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Rick Muir, president of the Indiana Federation of Teachers, chanted with other protesters at the Statehouse in Indianapolis in February 2011 over legislation limiting collective bargaining for teachers. Months later, it became law. AJ Mast/AP hide caption

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The planet Venus is seen crossing the sun in June 2004 as photographed through a telescope at Planetarium Urania in Hove, Belgium. The earliest known observation of such a transit was in 1639 by English astronomer Jeremiah Horrocks. Geert Vanden Wijngaert/AP hide caption

itoggle caption Geert Vanden Wijngaert/AP

Iran's Bushehr nuclear power plant, shown in this International Iran Photo Agency image from August 2010, was infected by the Stuxnet computer worm — which reportedly was created in the United States. Ebrahim Norouzi/AP hide caption

itoggle caption Ebrahim Norouzi/AP