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Method to Find New Moons Uncovers Hidden Planet
from the San Francisco Chronicle
The search for distant planets in the Milky Way is now so sophisticated that astronomers are searching for unseen moons around the planets that the Kepler mission's scientists have discovered.
A team of astronomers hunting for those moons reports that in their quest they have unexpectedly detected a hidden planet--and probably two--by using a technique that promises to aid the search for smaller planets much like Earth.
The technique is already in use by the Kepler team at the Ames Research Center in Mountain View, and was being used by astronomers at the Southwest Research Institute in Colorado and Harvard when they detected a curious kink in the orbit of one planet they were tracking in search of a possible "exo-moon."
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PODCAST & VIDEO: 3D Printing Replacement Body Parts
Regenerative medicine, a fledgling field with the aim of regrowing parts from a person’s own cells, is being amplified with 3D-printing technology, which can now use organic materials to create scaffolds that cells need to grow into their final forms. Richard Wysk, a professor of industrial and systems engineering at North Carolina State University, discusses the latest successes with this research, and the timeline for creating more complicated structures.
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