SCIENCE IN THE NEWS DAILY
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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Extreme events, such as super floods and hurricanes, are becoming more common, so civil engineers are trying to adapt civil infrastructure such as bridges to these unpredictable and sometimes devastating meteorological events. Engineer Ana Barros discusses how engineering can prepare us for extreme weather events, but also how changing climate and population conditions can affect the ability of infrastructure to hold up over time.
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