Tuesday, April 2, 2019

Building blocks of DNA and RNA could have appeared together before life began on Earth

Scientists for the first time have found strong evidence that RNA and DNA could have arisen from the same set of precursor molecules even before life evolved on Earth about four billion years ago.

from Latest Science News -- ScienceDaily https://ift.tt/2Upt1cG
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Satellites spot rapid “Doomsday Glacier” collapse

Two decades of satellite and GPS data show the Thwaites Eastern Ice Shelf slowly losing its grip on a crucial stabilizing point as fractures...