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Cold, Very Old Microorganisms Discovered by Penn State Team
from the Pittsburgh Post-Gazette
They like the cold, they don't need much oxygen, and you can fit 62 trillion of them into a teaspoon. They're also 120,000 years old.
Those are the salient characteristics of a new species of ultrasmall bacteria discovered deep inside a glacier by researchers at Penn State University.
The Chryseobacterium greenlandensis were isolated from an ice core from 1.8 miles beneath the surface of a glacier in Greenland. Jennifer Loveland-Curtze, the lead researcher on the Penn State team, said the new species adds one more sliver of enlightenment to the vast and mostly unexplored universe of microorganisms.
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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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