Marine scientists plumbing the deepest part of the ocean sent microphones and collection probes baited with chicken to the bottom of a trench near Guam. Now they watch, wait ... and listen.
Cuba is one of the least connected countries on Earth, with 5 percent of residents online. But it could become the Caribbean's largest market if the Castros open the nation up to the Internet.
The Education Department's unveiling today of a controversial ratings system has fueled a debate over what this kind of system can or should measure.
Nebraska and Oklahoma have filed a lawsuit against Colorado with the U.S. Supreme Court, saying that its law legalizing marijuana isn't constitutional.
The Kepler space telescope, which cost some $600 million, was feared to be at the end of its useful life in 2013. But NASA says it just found another exoplanet.
Cuba and Venezuela are close allies that often seemed to speak with a single voice when it came to bashing the U.S. But now they may be out of sync.
An independent review panel calls for changes ranging from a better fence at the White House to a new approach to training and leadership within the Secret Service.
An analysis by Pew Charitable Trusts shows that immigrants are increasingly moving from "gateways" such as New York and Texas into states in Middle America.
President Obama says the U.S. and Cuba will normalize relations, which were severed in 1961. Here are images that highlight the decades of tense relations.
Environmental groups cheered New York's decision to ban the practice, and some in the industry say when it comes to good-paying jobs, New York's loss is Pennsylvania's gain.