SCIENCE IN THE NEWS DAILY
Harsh Climate Scoured Early Earth, Study Says
from National Geographic News
Earth's early atmosphere may have been highly corrosive to rocks, gradually dissolving away all but the toughest of minerals, a new study suggests.
The findings could explain a gap in Earth's geologic record that has puzzled scientists.
"It's possible that [the new study] answers the riddle," said Takayuki Ushikubo, a geologist at the University of Wisconsin, who led the study published online in the journal Earth and Planetary Science Letters.
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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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