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Dawn Reaches Milestone Approaching Asteroid Vesta

PASADENA, Calif. — NASA’s Dawn spacecraft has reached its official approach phase to the asteroid Vesta and will begin using cameras for the first time to aid navigation for an expected July 16 orbital encounter. The large asteroid is known as a protoplanet — a celestial body that almost formed into a planet.

At the start of this three-month final approach to this massive body in the asteroid belt, Dawn is 1.21 million kilometers (752,000 miles) from Vesta, or about three times the distance between Earth and the moon. During the approach phase, the spacecraft’s main activity will be thrusting with a special, hyper-efficient ion engine that uses electricity to ionize and accelerate xenon. The 12-inch-wide ion thrusters provide less thrust than conventional engines, but will provide propulsion for years during the mission and provide far greater capability to change velocity. (more…)

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Bing Travel Summer Forecast: Airfares Rise Nearly 15 Percent, Hotels Up 7 Percent

*Fareologists offer insight for how travelers can save money during a tough travel season.*

REDMOND, Wash. — May 4, 2011 — The Fareologists at Bing Travel (https://www.bing.com/travel) today issued their forecast for the 2011 summer travel season, predicting airfare and hotel costs will continue to swell. Compared with last year, airfare is expected to be up 15 percent, with tickets averaging $561, up from $485 last summer. Summer hotel costs will rise by more than 7 percent, with average costs at $242, versus $227 last year.

“Airlines are making deeper cuts in capacity, and surcharges are burgeoning,” said Krista Pappas, global travel industry director at Bing. “With oil prices on the rise, travelers can expect fares to continue to climb to offset fuel costs. Airlines also will continue to charge fees for their services, such as more leg room, premium boarding, baggage fees, Wi-Fi, food and entertainment.” (more…)

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UF Researchers Find Quiet Protein Speaks Loudly in Fight Against Cancer

GAINESVILLE, Fla. — When a movie character says, “It’s too quiet,” that’s usually a sign something bad may happen.

Now, University of Florida researchers have discovered that when variations of a certain protein in our cells are too quiet, it may add to the risk that someone will develop lung cancer. When scientists restored the protein to its normal, active self, its cancer-inhibiting properties reappeared. (more…)

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U.S. Online Display Advertising Market Delivers 1.1 Trillion Impressions in Q1 2011

*Facebook.com Now Accounts for Nearly 1 in 3 Online Display Ads in U.S.*

RESTON, VA, May 4, 2011 – comScore, Inc., a leader in measuring the digital world, today released an overview of the U.S. online display advertising market for Q1 2011 based on data from comScore Ad Metrix, indicating that nearly 1.11 trillion display ads were delivered to U.S. Internet users during the quarter. Facebook accounted for 346 billion impressions, nearly double the number it delivered in Q1 2010, and accounting for nearly one third of all display ad impressions delivered. (more…)

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Alcohol, Mood and Me (Not You)

Thanks in part to studies that follow subjects for a long time, psychologists are learning more about differences between people. In a new article published in Current Directions in Psychological Science, a journal of the Association for Psychological Science, the author describes how psychologists can use their data to learn about the different ways that people’s minds work.

Most psychology research is done by asking a big group of people the same questions at the same time. “So we might get a bunch of Psych 101 undergrads, administer a survey, ask about how much they use alcohol and what their mood is, and just look and see, is there a relationship between those two variables,” says Daniel J. Bauer of the University of North Carolina at Chapel Hill, the author of the article. (more…)

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