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It was a meteorological mystery: global temperatures hadn't increased dramatically over the Past decade, even though greenhouse gas levels did. It turns out that a temporary decline in water vapor in the Earth's upper atmosphere has been holding global warming in check.

San Diego REP and SCPA Form Mutually Beneficial Partnership

This year's Nobel Prize in Economic Sciences has gone to Paul Krugman for his theories on how economies of scale affect international trade. Krugman, a professor of economics and international affairs at the Woodrow Wilson School at Princeton University and a columnist for The New York Times, says he was stark naked, about to step into the shower at 6:40 a.m. when his cell phone rang with the news. He called the award "an awesome surprise."

In Washington, D.C., and at federal agencies across the country, the big question employees are asking on the eve of a possible government shutdown is: Am I essential or not? Workers and agencies that are deemed essential will be kept on the job if a shutdown occurs.

The shuttle Endeavour blasted off early Tuesday on what is to be its longest space station mission ever — a 16-day trip to build a Canadian robot and construct part of a Japanese science module. Endeavour's departure marked the second successful launch of a shuttle in just over a month's time.

What could be worse than a ruptured pipeline of crude oil? A ruptured pipeline of tar sands oil — a thick, sticky substance. Cleanup of a 2010 spill in Michigan's Kalamazoo River took much longer and was far harder than anyone had anticipated. It's now a cautionary tale for people in the middle of the new Keystone pipeline's path.

There is in the American air — some 13 months away from the 2012 election — a whiff of suggestion that Obama might not be re-elected. Or re-electable. Past presidents have weathered stormier times, but when you hit bottom matters.

We'll learn about a gender-bending lucha libre wrestler from Tijuana and get a primer on the traditions and genres within the world of Mexican wrestling.

Last year, China overtook the U.S. as home of the world's fastest supercomputer. That lasted only six months, but generated intense national pride. Will the much-vaunted program able to live up to Beijing's high expectations?

A San Diego State University linguist says spoken language and sign language use the brain in very much the same way.