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...more numerous than Sun-like stars; of the 300 stars closest to Earth, says Charbonneau, 220 or so are M-dwarfs. They're also much cooler than Sun-like stars, so their habitable zones are close-in. A planet in the Goldilocks position around an M-dwarf doesn't take a year to orbit, as Earth does; it takes only a few days (1.6 days, in the case of GJ 1214b). So astronomers need to wait only a few days to spot a planet passing by, and only a few weeks to confirm the orbit with several passes. (See pictures...
They also did it fast. "We thought it would take us two years to find something like GJ 1214b," says Charbonneau. "It took just six months. Either we got really lucky, or these planets are common." If they are, then it wouldn't be surprising for astronomers to find planets that are slightly smaller and slightly cooler - in short, more Earth-like - as well...
Cornell University Assistant Professor Sahara Byrne presented audience members with evidence suggesting that internet risk prevention strategies are most likely to be effective when they allow children to take an active role in their own protection...
Weitzman noted that when Samuelson won the Nobel Prize, he was reminded to take his acceptance speech seriously...
...beneficiary of anxiety over Iran. The United Arab Emirates this year ordered $9 billion worth of U.S. military gear, Petraeus noted, including 70 Lockheed Martin F-16 fighter jets of a generation more advanced than those being used by the U.S. Air Force. "The Emirati air force can now take out Iran's air force," Petraeus said...