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Cosmic 'dig' reveals vestiges of the Milky Way's building blocks

"The history of the Milky Way is encoded in its oldest fragments, globular clusters and other systems of stars that have witnessed the entire evolution of our galaxy," says Francesco Ferraro, lead author of a paper appearing in this week's issue of the journal Nature. "Our new study opens a new window on yet another piece of our galactic past."

Brain represents tools as temporary body parts, study confirms

Researchers have what they say is the first direct proof of a very old idea: that when we use a tool -- even for just a few minutes -- it changes the way our brain represents the size of our body. In other words, the tool becomes a part of what is known in psychology as our body schema, according to a report published in the June 23rd issue of Current Biology, a Cell Press publication.



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