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On his upcoming trip to Mount Everest, mountaineer Conrad Anker will team up with geologist Dave Lageson to remeasure the peak's exact altitude--a stat scientists still dispute. Physiologist Bryan Taylor will also be in Nepal to monitor how Anker's blood, brain and muscles respond to the thin Himalayan air.

Estimated altitude for this flight was about 115,000 feet, says Raul Oaida, 18-years-old. Raul launched the shuttle, along with a video camera and a GPS tracker, by way of a large helium balloon. Flight time was about three hours--the shuttle landing about 150 miles south of where it took off.

Astrophysicist Adam Riess shared the Nobel Prize in Physics in 2011 for his work on distant supernovae, which demonstrated that the universe was not only expanding--but that its expansion was accelerating. Now he's hunting for clues that might explain why, and one of the prime suspects is a mysterious force known as dark energy.

Dharun Ravi, who was accused of using a webcam to spy on his gay roommate's love life has been convicted of bias intimidation and invasion of privacy. Tyler Clementi, the spying victim, committed suicide in September 2010.

Is the battle for the GOP presidential nomination about history? Or is it about math? Santorum may be getting big headlines with his primary wins, but it's Romney who is advancing further to the magic 1,144 number. And more defeats mean more pressure on Gingrich to pull out.

Washington Post columnist has been shown some of the documents seized during the raid that ended with the al-Qaida leader's death. The plot didn't get far, officials tell him, but underscores bin Laden's desire to strike the U.S. again.

Researchers made a bunch of male fruit flies into boozehounds by pushing them on females unreceptive to their advances. The experiments showed that a brain chemical, very much like one in humans, played a key role in determining their behavior.

While religion is diminishing in Great Britain, it remains a powerful force in the U.S. British author Alain de Botton suggests that faith is intermittently too useful, effective and intelligent to be abandoned to the religious alone.

A new book called Why Nations Fail argues that a lot comes down to politics — not just laws, but also a country's norms.

Illinois is in the worst fiscal shape of any state in the country. And that could be good news for Mitt Romney on Tuesday, when Illinois holds its primary, at least according to state Treasurer Dan Rutherford, who backs the former Massachusetts governor.