Word: b
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...That obstacle was overcome in 1995 when astronomers Michael Mayor and Didier Queloz discovered the planet 51 Pegasus b orbiting the eponymous star 51 Pegasus. The astronomers made their find not by spotting the planet directly but by measuring the minute gravitational wobbles it causes in its parent star as it orbits. With those scraps of data, they could calculate the planet's mass, velocity, orbital altitude and more...
...order to get going is a relatively small, rocky planet orbiting in what's called a star's habitable zone - a place where things get hot but not too hot, cold but not too cold. A place like Earth, in other words. In the 14 years since 51 Pegasus b was found, astronomers have counted a total of 342 planets orbiting 289 stars, but not a single one of them is of the so-called terrestrial variety. (See pictures of Saturn...
...often that a place like Harvard Medical School gets an F - particularly when rivals Stanford, Columbia and the University of Pennsylvania are pulling A's and B's. But that's what happened recently when the members of the increasingly influential - and increasingly noisy - American Medical Student Association (AMSA) decided to grade 150 med schools on just how much money and gifts they're collecting from drug companies. The more goodies a school is vacuuming up from the industry, the worse its grade...
...that the cooperation yields more good than harm. And while Harvard might be the highest-profile name that was posted on AMSA's grade list, it was hardly the only one that flunked: 40 out of the 150 schools surveyed received F's; only 22 got an A or B...
...Gehrig’s disease—Bacskai and researchers at MIND are in the process of using these imaging techniques to study other neurodegenerative diseases. “The point of MIND is to have all the researchers in an open lab environment,” said Anne B. Young, the chief of neurology at MGH and the director of MGH-MIND. “When somebody like Brian finds a new way of looking at something like Alzheimer’s disease we can then go quickly to looking at the same issues in other diseases...